#255E7B#255E7B

#255E7B is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 45.8% C 0.075 H 234.1°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#255E7B
RGB	rgb(37, 94, 123)
HSL	hsl(200, 54%, 31%)
HSV	hsv(200, 70%, 48%)
CMYK	cmyk(69.9%, 23.6%, 0%, 51.8%)
CIE-LAB	lab(37.53, -8.56, -21.76)
CIE-LCH	lch(37.53, 23.38, 248.52°)
OKLab	oklab(45.77% -0.0443 -0.0611)
OKLCH	oklch(45.77% 0.075 234.1)
XYZ	xyz(8.3394, 9.8279, 20.1925)
Luminance	0.0983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E7B #7B4225

analogous

#257B6D #255E7B #25337B

triadic

#255E7B #7B255E #5E7B25

tetradic

#255E7B #6D257B #7B4225 #337B25

square

#255E7B #6D257B #7B4225 #337B25

split-complementary

#255E7B #7B2533 #7B6D25

monochromatic

#09161D #173A4C #255E7B #3382AA #50A1CA

Accessibility & contrast

On white

7.08

#255E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#255E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255E7B

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E7B	#FFFFFF	#000000	##FFFFFF
##255E7B	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#505D7C

Deuteranopia (green-blind)

#44557B

Tritanopia (blue-blind)

#006668

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255e7b;
/* rgb */ color: rgb(37, 94, 123);
/* oklch */ color: oklch(45.8% 0.075 234.1);

Tailwind

colors: {
  custom: {
    50: '#6a8ba1',
    500: '#255e7b',
    950: '#000000',
  },
}

SCSS

$custom: #255e7b;
$custom-light: #6a8ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#255e7b",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 123
  },
  "hsl": {
    "h": 200.233,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.45772,
    "c": 0.07543,
    "h": 234.1
  },
  "luminance": 0.09829
}

Semantic roles & 50–950 ramp

primary

#255E7B

secondary

#AD6E4F

accent

#7C4BDD

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #255E7B

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

Preview Lab → · Contrast checker → · Palette generator →