#255E99#255E99

#255E99 is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.5% C 0.112 H 252.0°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#255E99
RGB	rgb(37, 94, 153)
HSL	hsl(211, 61%, 37%)
HSV	hsv(211, 76%, 60%)
CMYK	cmyk(75.8%, 38.6%, 0%, 40%)
CIE-LAB	lab(39.07, 2.66, -37.53)
CIE-LCH	lch(39.07, 37.63, 274.05°)
OKLab	oklab(47.49% -0.0347 -0.107)
OKLCH	oklch(47.49% 0.112 252)
XYZ	xyz(10.5133, 10.6974, 31.6415)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E99 #996025

analogous

#259899 #255E99 #262599

triadic

#255E99 #99255E #5E9925

tetradic

#255E99 #992598 #996025 #259926

square

#255E99 #992598 #996025 #259926

split-complementary

#255E99 #992625 #989925

monochromatic

#0D2136 #194068 #255E99 #317CCA #609BD9

Accessibility & contrast

On white

6.69

#255E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#255E99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255E99

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E99	#FFFFFF	#000000	##FFFFFF
##255E99	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43629B

Deuteranopia (green-blind)

#315798

Tritanopia (blue-blind)

#006C74

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255e99;
/* rgb */ color: rgb(37, 94, 153);
/* oklch */ color: oklch(47.5% 0.112 252.0);

Tailwind

colors: {
  custom: {
    50: '#708bb7',
    500: '#255e99',
    950: '#000000',
  },
}

SCSS

$custom: #255e99;
$custom-light: #708bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#255e99",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 153
  },
  "hsl": {
    "h": 210.517,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.47485,
    "c": 0.11244,
    "h": 252
  },
  "luminance": 0.10699
}

Semantic roles & 50–950 ramp

primary

#255E99

secondary

#BE8E5C

accent

#9544E4

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #255E99

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

Preview Lab → · Contrast checker → · Palette generator →