#255E9A#255E9A

#255E9A is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.5% C 0.114 H 252.4°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#255E9A
RGB	rgb(37, 94, 154)
HSL	hsl(211, 61%, 37%)
HSV	hsv(211, 76%, 60%)
CMYK	cmyk(76%, 39%, 0%, 39.6%)
CIE-LAB	lab(39.12, 3.04, -38.04)
CIE-LCH	lch(39.12, 38.16, 274.58°)
OKLab	oklab(47.55% -0.0344 -0.1084)
OKLCH	oklch(47.55% 0.114 252.4)
XYZ	xyz(10.5962, 10.7306, 32.0783)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E9A #9A6125

analogous

#25999A #255E9A #26259A

triadic

#255E9A #9A255E #5E9A25

tetradic

#255E9A #9A2599 #9A6125 #259A26

square

#255E9A #9A2599 #9A6125 #259A26

split-complementary

#255E9A #9A2625 #999A25

monochromatic

#0D2237 #194069 #255E9A #317CCB #609BD9

Accessibility & contrast

On white

6.67

#255E9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#255E9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255E9A

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E9A	#FFFFFF	#000000	##FFFFFF
##255E9A	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42629C

Deuteranopia (green-blind)

#305799

Tritanopia (blue-blind)

#006C74

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255e9a;
/* rgb */ color: rgb(37, 94, 154);
/* oklch */ color: oklch(47.5% 0.114 252.4);

Tailwind

colors: {
  custom: {
    50: '#708bb8',
    500: '#255e9a',
    950: '#000000',
  },
}

SCSS

$custom: #255e9a;
$custom-light: #708bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#255e9a",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 154
  },
  "hsl": {
    "h": 210.769,
    "s": 61.257,
    "l": 37.451
  },
  "oklch": {
    "l": 0.47548,
    "c": 0.11378,
    "h": 252.4
  },
  "luminance": 0.10732
}

Semantic roles & 50–950 ramp

primary

#255E9A

secondary

#BE8F5D

accent

#9643E4

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #255E9A

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

Preview Lab → · Contrast checker → · Palette generator →