#4377BF#4377BF

#4377BF is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.8% C 0.125 H 256.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4377BF
RGB	rgb(67, 119, 191)
HSL	hsl(215, 49%, 51%)
HSV	hsv(215, 65%, 75%)
CMYK	cmyk(64.9%, 37.7%, 0%, 25.1%)
CIE-LAB	lab(49.67, 5.71, -42.92)
CIE-LCH	lch(49.67, 43.30, 277.57°)
OKLab	oklab(56.75% -0.0283 -0.1219)
OKLCH	oklch(56.75% 0.125 256.9)
XYZ	xyz(18.3122, 18.1468, 51.8177)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4377BF #BF8B43

analogous

#43B5BF #4377BF #4D43BF

triadic

#4377BF #BF4377 #77BF43

tetradic

#4377BF #BF43B5 #BF8B43 #43BF4D

square

#4377BF #BF43B5 #BF8B43 #43BF4D

split-complementary

#4377BF #BF4D43 #B5BF43

monochromatic

#223E65 #325B93 #4377BF #7198CF #9EB9DE

Accessibility & contrast

On white

4.54

#4377BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4377BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4377BF

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4377BF	#FFFFFF	#000000	##000000
##4377BF	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC2

Deuteranopia (green-blind)

#4671BE

Tritanopia (blue-blind)

#008792

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4377bf;
/* rgb */ color: rgb(67, 119, 191);
/* oklch */ color: oklch(56.8% 0.125 256.9);

Tailwind

colors: {
  custom: {
    50: '#839dd2',
    500: '#4377bf',
    950: '#000000',
  },
}

SCSS

$custom: #4377bf;
$custom-light: #839dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4377bf",
  "rgb": {
    "r": 67,
    "g": 119,
    "b": 191
  },
  "hsl": {
    "h": 214.839,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56754,
    "c": 0.12519,
    "h": 256.9
  },
  "luminance": 0.18149
}

Semantic roles & 50–950 ramp

primary

#4377BF

secondary

#CAB393

accent

#9F4FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4377BF

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

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