#255E8A#255E8A

#255E8A is a mid, moderate cyan. Relative luminance 0.102; OKLCH L 46.6% C 0.093 H 245.2°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#255E8A
RGB	rgb(37, 94, 138)
HSL	hsl(206, 58%, 34%)
HSV	hsv(206, 73%, 54%)
CMYK	cmyk(73.2%, 31.9%, 0%, 45.9%)
CIE-LAB	lab(38.26, -3.04, -29.77)
CIE-LCH	lch(38.26, 29.92, 264.17°)
OKLab	oklab(46.59% -0.039 -0.0843)
OKLCH	oklch(46.59% 0.093 245.2)
XYZ	xyz(9.3513, 10.2327, 25.5221)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E8A #8A5125

analogous

#258A84 #255E8A #252B8A

triadic

#255E8A #8A255E #5E8A25

tetradic

#255E8A #84258A #8A5125 #2B8A25

square

#255E8A #84258A #8A5125 #2B8A25

split-complementary

#255E8A #8A252B #8A8425

monochromatic

#0B1C29 #183D5A #255E8A #327FBA #579DD2

Accessibility & contrast

On white

6.89

#255E8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#255E8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255E8A

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E8A	#FFFFFF	#000000	##FFFFFF
##255E8A	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5F8C

Deuteranopia (green-blind)

#3C5689

Tritanopia (blue-blind)

#00696E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #255e8a;
/* rgb */ color: rgb(37, 94, 138);
/* oklch */ color: oklch(46.6% 0.093 245.2);

Tailwind

colors: {
  custom: {
    50: '#6d8bac',
    500: '#255e8a',
    950: '#000000',
  },
}

SCSS

$custom: #255e8a;
$custom-light: #6d8bac;
$custom-dark: #000000;

JSON

{
  "hex": "#255e8a",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 138
  },
  "hsl": {
    "h": 206.139,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.46585,
    "c": 0.09286,
    "h": 245.2
  },
  "luminance": 0.10234
}

Semantic roles & 50–950 ramp

primary

#255E8A

secondary

#B77F54

accent

#8A47E1

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #255E8A

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

Preview Lab → · Contrast checker → · Palette generator →