#437CBB#437CBB

#437CBB is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.115 H 252.5°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#437CBB
RGB	rgb(67, 124, 187)
HSL	hsl(212, 47%, 50%)
HSV	hsv(212, 64%, 73%)
CMYK	cmyk(64.2%, 33.7%, 0%, 26.7%)
CIE-LAB	lab(50.91, 1.28, -38.66)
CIE-LCH	lch(50.91, 38.68, 271.90°)
OKLab	oklab(57.66% -0.0345 -0.1094)
OKLCH	oklch(57.66% 0.115 252.5)
XYZ	xyz(18.4888, 19.1947, 49.7347)
Luminance	0.1920 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CBB #BB8243

analogous

#43B8BB #437CBB #4643BB

triadic

#437CBB #BB437C #7CBB43

tetradic

#437CBB #BB43B8 #BB8243 #43BB46

square

#437CBB #BB43B8 #BB8243 #43BB46

split-complementary

#437CBB #BB4643 #B8BB43

monochromatic

#234061 #335E8E #437CBB #709BCC #9DBBDC

Accessibility & contrast

On white

4.34

#437CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#437CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CBB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CBB	#FFFFFF	#000000	##000000
##437CBB	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6180BE

Deuteranopia (green-blind)

#5074BA

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #437cbb;
/* rgb */ color: rgb(67, 124, 187);
/* oklch */ color: oklch(57.7% 0.115 252.5);

Tailwind

colors: {
  custom: {
    50: '#83a1d0',
    500: '#437cbb',
    950: '#000000',
  },
}

SCSS

$custom: #437cbb;
$custom-light: #83a1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#437cbb",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 187
  },
  "hsl": {
    "h": 211.5,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57656,
    "c": 0.11476,
    "h": 252.5
  },
  "luminance": 0.19196
}

Semantic roles & 50–950 ramp

primary

#437CBB

secondary

#C8AE92

accent

#9751D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #437CBB

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

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