#287AAD#287AAD

#287AAD is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.5% C 0.110 H 240.7°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#287AAD
RGB	rgb(40, 122, 173)
HSL	hsl(203, 62%, 42%)
HSV	hsv(203, 77%, 68%)
CMYK	cmyk(76.9%, 29.5%, 0%, 32.2%)
CIE-LAB	lab(48.74, -6.63, -34.05)
CIE-LCH	lch(48.74, 34.69, 258.98°)
OKLab	oklab(55.47% -0.054 -0.0963)
OKLCH	oklch(55.47% 0.11 240.7)
XYZ	xyz(15.3745, 17.3855, 42.0725)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287AAD #AD5B28

analogous

#28AD9E #287AAD #2837AD

triadic

#287AAD #AD287A #7AAD28

tetradic

#287AAD #9E28AD #AD5B28 #37AD28

square

#287AAD #9E28AD #AD5B28 #37AD28

split-complementary

#287AAD #AD2837 #AD9E28

monochromatic

#11344A #1D577B #287AAD #3F9AD3 #71B4DE

Accessibility & contrast

On white

4.69

#287AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#287AAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287AAD

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287AAD	#FFFFFF	#000000	##FFFFFF
##287AAD	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627BAF

Deuteranopia (green-blind)

#506EAC

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287aad;
/* rgb */ color: rgb(40, 122, 173);
/* oklch */ color: oklch(55.5% 0.110 240.7);

Tailwind

colors: {
  custom: {
    50: '#76a0c5',
    500: '#287aad',
    950: '#000000',
  },
}

SCSS

$custom: #287aad;
$custom-light: #76a0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#287aad",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 173
  },
  "hsl": {
    "h": 203.008,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.5547,
    "c": 0.11044,
    "h": 240.7
  },
  "luminance": 0.17387
}

Semantic roles & 50–950 ramp

primary

#287AAD

secondary

#C58E6C

accent

#8142E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #287AAD

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

Preview Lab → · Contrast checker → · Palette generator →