#255E6D#255E6D

#255E6D is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.1% C 0.063 H 218.0°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#255E6D
RGB	rgb(37, 94, 109)
HSL	hsl(193, 49%, 29%)
HSV	hsv(193, 66%, 43%)
CMYK	cmyk(66.1%, 13.8%, 0%, 57.3%)
CIE-LAB	lab(36.93, -13.47, -14.06)
CIE-LCH	lch(36.93, 19.47, 226.24°)
OKLab	oklab(45.1% -0.05 -0.0391)
OKLCH	oklch(45.1% 0.063 218)
XYZ	xyz(7.5249, 9.5021, 15.9025)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E6D #6D3425

analogous

#256D58 #255E6D #253A6D

triadic

#255E6D #6D255E #5E6D25

tetradic

#255E6D #58256D #6D3425 #3A6D25

square

#255E6D #58256D #6D3425 #3A6D25

split-complementary

#255E6D #6D253A #6D5825

monochromatic

#081417 #15373F #255E6D #35859B #4BA9C2

Accessibility & contrast

On white

7.24

#255E6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#255E6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255E6D

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E6D	#FFFFFF	#000000	##FFFFFF
##255E6D	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545B6E

Deuteranopia (green-blind)

#4A546D

Tritanopia (blue-blind)

#006363

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #255e6d;
/* rgb */ color: rgb(37, 94, 109);
/* oklch */ color: oklch(45.1% 0.063 218.0);

Tailwind

colors: {
  custom: {
    50: '#688b96',
    500: '#255e6d',
    950: '#000000',
  },
}

SCSS

$custom: #255e6d;
$custom-light: #688b96;
$custom-dark: #000000;

JSON

{
  "hex": "#255e6d",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 109
  },
  "hsl": {
    "h": 192.5,
    "s": 49.315,
    "l": 28.627
  },
  "oklch": {
    "l": 0.45096,
    "c": 0.06348,
    "h": 218
  },
  "luminance": 0.09503
}

Semantic roles & 50–950 ramp

primary

#255E6D

secondary

#A05F4E

accent

#6C4FD9

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0D

muted

#7A7D7E

Preview Lab

Preview with #255E6D

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

Preview Lab → · Contrast checker → · Palette generator →