#255B7B#255B7B

#255B7B is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.0% C 0.077 H 238.0°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#255B7B
RGB	rgb(37, 91, 123)
HSL	hsl(202, 54%, 31%)
HSV	hsv(202, 70%, 48%)
CMYK	cmyk(69.9%, 26%, 0%, 51.8%)
CIE-LAB	lab(36.56, -6.74, -23.26)
CIE-LCH	lch(36.56, 24.22, 253.84°)
OKLab	oklab(45% -0.0409 -0.0654)
OKLCH	oklch(45% 0.077 238)
XYZ	xyz(8.0778, 9.3047, 20.1053)
Luminance	0.0931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B7B #7B4525

analogous

#257B70 #255B7B #25307B

triadic

#255B7B #7B255B #5B7B25

tetradic

#255B7B #70257B #7B4525 #307B25

square

#255B7B #70257B #7B4525 #307B25

split-complementary

#255B7B #7B2530 #7B7025

monochromatic

#09151D #17384C #255B7B #337EAA #509DCA

Accessibility & contrast

On white

7.34

#255B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#255B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B7B

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B7B	#FFFFFF	#000000	##FFFFFF
##255B7B	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5B7C

Deuteranopia (green-blind)

#40527A

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #255b7b;
/* rgb */ color: rgb(37, 91, 123);
/* oklch */ color: oklch(45.0% 0.077 238.0);

Tailwind

colors: {
  custom: {
    50: '#6a89a1',
    500: '#255b7b',
    950: '#000000',
  },
}

SCSS

$custom: #255b7b;
$custom-light: #6a89a1;
$custom-dark: #000000;

JSON

{
  "hex": "#255b7b",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 123
  },
  "hsl": {
    "h": 202.326,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.45003,
    "c": 0.07717,
    "h": 238
  },
  "luminance": 0.09306
}

Semantic roles & 50–950 ramp

primary

#255B7B

secondary

#AD724F

accent

#814BDD

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #255B7B

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

Preview Lab → · Contrast checker → · Palette generator →