#255B71#255B71

#255B71 is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.5% C 0.067 H 228.0°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#255B71
RGB	rgb(37, 91, 113)
HSL	hsl(197, 51%, 29%)
HSV	hsv(197, 67%, 44%)
CMYK	cmyk(67.3%, 19.5%, 0%, 55.7%)
CIE-LAB	lab(36.11, -10.32, -17.79)
CIE-LCH	lch(36.11, 20.57, 239.88°)
OKLab	oklab(44.5% -0.0448 -0.0497)
OKLCH	oklch(44.5% 0.067 228)
XYZ	xyz(7.4835, 9.0670, 16.9753)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B71 #713B25

analogous

#257161 #255B71 #253571

triadic

#255B71 #71255B #5B7125

tetradic

#255B71 #612571 #713B25 #357125

square

#255B71 #612571 #713B25 #357125

split-complementary

#255B71 #712535 #716125

monochromatic

#081317 #163643 #255B71 #34809F #4CA2C4

Accessibility & contrast

On white

7.46

#255B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#255B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B71

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B71	#FFFFFF	#000000	##FFFFFF
##255B71	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5972

Deuteranopia (green-blind)

#455271

Tritanopia (blue-blind)

#006162

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #255b71;
/* rgb */ color: rgb(37, 91, 113);
/* oklch */ color: oklch(44.5% 0.067 228.0);

Tailwind

colors: {
  custom: {
    50: '#69899a',
    500: '#255b71',
    950: '#000000',
  },
}

SCSS

$custom: #255b71;
$custom-light: #69899a;
$custom-dark: #000000;

JSON

{
  "hex": "#255b71",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 113
  },
  "hsl": {
    "h": 197.368,
    "s": 50.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.44495,
    "c": 0.06693,
    "h": 228
  },
  "luminance": 0.09068
}

Semantic roles & 50–950 ramp

primary

#255B71

secondary

#A4674E

accent

#764EDA

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #255B71

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

Preview Lab → · Contrast checker → · Palette generator →