#4E8EA4

A color in the Cyan, Emerald family

#4e8ea4 is a color in the Cyan, Emerald family: RGB(78, 142, 164), HSL(195°, 36%, 47%), CMYK(52%, 13%, 0%, 36%). Closest named color: lightslategray. Contrast is 3.67:1 on white and 5.73:1 on black. See shades, harmonies and color-blindness simulation.

Color Codes

HEX#4e8ea4
RGBrgb(78 142 164)
RGB (legacy)rgb(78, 142, 164)
RGB %rgb(31% 56% 64%)
HSLhsl(195 36% 47%)
HSV / HSBhsv(195, 52%, 64%)
HWBhwb(195 31% 36%)
CMYKcmyk(52%, 13%, 0%, 36%)
CIELAB (D50)lab(55.42 -16.62 -18.4)
LCHlch(55.42 24.8 227.91)
OKLaboklab(0.6127 -0.0542 -0.0497)
OKLCHoklch(0.6127 0.0735 222.51)
Decimal5148324

Properties

Color ToneCyan, Emerald
Closest named colorlightslategray ΔE 4.7
Closest web-safe color#669999
Hue195°
Saturation (HSL / HSV)36% / 52%
Lightness (HSL)47%
Brightness or Value (HSV)64%
Luminance (Rec.601 / Rec.709)49% / 51%
Relative luminance (WCAG)0.2365
Red / Green / Blue78 / 142 / 164

WCAG 2.2 Contrast Ratio

On White (#ffffff)
3.67:1
AA Normal (4.5:1) · FailAA Large (3:1) · PassAAA Normal (7:1) · Fail
On Black (#000000)
5.73:1
AA Normal (4.5:1) · PassAA Large (3:1) · PassAAA Normal (7:1) · Fail
Aa Bb 123

APCA Contrast Lc (reference) — As text on white / black: Lc 64.1 / -37.6 · As background with white / black text: Lc -69.6 / 40

Lightness Scale (OKLCH 50–950)

Eleven steps that change only perceived lightness while keeping hue and chroma — ready to use as design-system color tokens.

Tints (mixed with white)

Shades (mixed with black)

Color Harmonies

Color Vision Deficiency Simulation

Estimated appearance of this color for people with color vision deficiencies (Machado 2009).

Similar Named Colors

Use in CSS

:root {
  --color-brand: #4e8ea4;
  --color-brand-oklch: oklch(61.27% 0.0735 222.51);
}
.text { color: var(--color-brand); }
.background { background-color: var(--color-brand); }
.border { border: 1px solid rgb(78 142 164 / 50%); }
/* Tailwind CSS */
<div class="bg-[#4e8ea4] text-[#4e8ea4] border-[#4e8ea4]">