#255A8E#255A8E

#255A8E is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.8% C 0.102 H 250.7°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#255A8E
RGB	rgb(37, 90, 142)
HSL	hsl(210, 59%, 35%)
HSV	hsv(210, 74%, 56%)
CMYK	cmyk(73.9%, 36.6%, 0%, 44.3%)
CIE-LAB	lab(37.22, 1.00, -33.83)
CIE-LCH	lch(37.22, 33.84, 271.69°)
OKLab	oklab(45.84% -0.0337 -0.0962)
OKLCH	oklch(45.84% 0.102 250.7)
XYZ	xyz(9.2998, 9.6576, 26.9599)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A8E #8E5925

analogous

#258E8D #255A8E #25268E

triadic

#255A8E #8E255A #5A8E25

tetradic

#255A8E #8D258E #8E5925 #268E25

square

#255A8E #8D258E #8E5925 #268E25

split-complementary

#255A8E #8E2526 #8E8D25

monochromatic

#0C1C2D #183B5D #255A8E #3279BF #5A97D4

Accessibility & contrast

On white

7.16

#255A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#255A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A8E

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A8E	#FFFFFF	#000000	##FFFFFF
##255A8E	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425D90

Deuteranopia (green-blind)

#33538D

Tritanopia (blue-blind)

#00666D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255a8e;
/* rgb */ color: rgb(37, 90, 142);
/* oklch */ color: oklch(45.8% 0.102 250.7);

Tailwind

colors: {
  custom: {
    50: '#6e88af',
    500: '#255a8e',
    950: '#000000',
  },
}

SCSS

$custom: #255a8e;
$custom-light: #6e88af;
$custom-dark: #000000;

JSON

{
  "hex": "#255a8e",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 142
  },
  "hsl": {
    "h": 209.714,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4584,
    "c": 0.10192,
    "h": 250.7
  },
  "luminance": 0.09659
}

Semantic roles & 50–950 ramp

primary

#255A8E

secondary

#B98756

accent

#9346E2

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255A8E

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

Preview Lab → · Contrast checker → · Palette generator →