#CF0921

A color in the Red, Pink family

#cf0921 is a color in the Red, Pink family: RGB(207, 9, 33), HSL(353°, 92%, 42%), CMYK(0%, 96%, 84%, 19%). Closest named color: crimson. Contrast is 5.65:1 on white and 3.71:1 on black. See shades, harmonies and color-blindness simulation.

Color Codes

HEX#cf0921
RGBrgb(207 9 33)
RGB (legacy)rgb(207, 9, 33)
RGB %rgb(81% 4% 13%)
HSLhsl(353 92% 42%)
HSV / HSBhsv(353, 96%, 81%)
HWBhwb(353 4% 19%)
CMYKcmyk(0%, 96%, 84%, 19%)
CIELAB (D50)lab(44.48 68.56 46.57)
LCHlch(44.48 82.88 34.19)
OKLaboklab(0.5404 0.1951 0.0929)
OKLCHoklch(0.5404 0.2161 25.46)
Decimal13568289

Properties

Color ToneRed, Pink
Closest named colorcrimson ΔE 3.7
Closest web-safe color#cc0033
Hue353°
Saturation (HSL / HSV)92% / 96%
Lightness (HSL)42%
Brightness or Value (HSV)81%
Luminance (Rec.601 / Rec.709)28% / 21%
Relative luminance (WCAG)0.1357
Red / Green / Blue207 / 9 / 33

WCAG 2.2 Contrast Ratio

On White (#ffffff)
5.65:1
AA Normal (4.5:1) · PassAA Large (3:1) · PassAAA Normal (7:1) · Fail
On Black (#000000)
3.71:1
AA Normal (4.5:1) · FailAA Large (3:1) · PassAAA Normal (7:1) · Fail
Aa Bb 123

APCA Contrast Lc (reference) — As text on white / black: Lc 75.7 / -26 · As background with white / black text: Lc -81.1 / 28.4

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: #cf0921;
  --color-brand-oklch: oklch(54.04% 0.2161 25.46);
}
.text { color: var(--color-brand); }
.background { background-color: var(--color-brand); }
.border { border: 1px solid rgb(207 9 33 / 50%); }
/* Tailwind CSS */
<div class="bg-[#cf0921] text-[#cf0921] border-[#cf0921]">