#2177D4#2177D4

#2177D4 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 57.0% C 0.163 H 254.2°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#2177D4
RGB	rgb(33, 119, 212)
HSL	hsl(211, 73%, 48%)
HSV	hsv(211, 84%, 83%)
CMYK	cmyk(84.4%, 43.9%, 0%, 16.9%)
CIE-LAB	lab(49.82, 9.18, -54.74)
CIE-LCH	lch(49.82, 55.51, 279.52°)
OKLab	oklab(56.96% -0.0444 -0.1571)
OKLCH	oklch(56.96% 0.163 254.2)
XYZ	xyz(19.1032, 18.2680, 64.7938)
Luminance	0.1827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2177D4 #D47E21

analogous

#21D0D4 #2177D4 #2421D4

triadic

#2177D4 #D42177 #77D421

tetradic

#2177D4 #D421D0 #D47E21 #21D424

square

#2177D4 #D421D0 #D47E21 #21D424

split-complementary

#2177D4 #D42421 #D0D421

monochromatic

#113C6A #19599F #2177D4 #4F96E4 #84B6EC

Accessibility & contrast

On white

4.51

#2177D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#2177D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2177D4

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2177D4	#FFFFFF	#000000	##000000
##2177D4	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#467FD8

Deuteranopia (green-blind)

#206FD2

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #2177d4;
/* rgb */ color: rgb(33, 119, 212);
/* oklch */ color: oklch(57.0% 0.163 254.2);

Tailwind

colors: {
  custom: {
    50: '#7c9de2',
    500: '#2177d4',
    950: '#000000',
  },
}

SCSS

$custom: #2177d4;
$custom-light: #7c9de2;
$custom-dark: #000000;

JSON

{
  "hex": "#2177d4",
  "rgb": {
    "r": 33,
    "g": 119,
    "b": 212
  },
  "hsl": {
    "h": 211.173,
    "s": 73.061,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5696,
    "c": 0.16323,
    "h": 254.2
  },
  "luminance": 0.1827
}

Semantic roles & 50–950 ramp

primary

#2177D4

secondary

#D5AA7C

accent

#9738F0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #2177D4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →