#255B78#255B78

#255B78 is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.8% C 0.074 H 235.3°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#255B78
RGB	rgb(37, 91, 120)
HSL	hsl(201, 53%, 31%)
HSV	hsv(201, 69%, 47%)
CMYK	cmyk(69.2%, 24.2%, 0%, 52.9%)
CIE-LAB	lab(36.42, -7.83, -21.63)
CIE-LCH	lch(36.42, 23.00, 250.11°)
OKLab	oklab(44.85% -0.042 -0.0607)
OKLCH	oklch(44.85% 0.074 235.3)
XYZ	xyz(7.8929, 9.2307, 19.1314)
Luminance	0.0923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B78 #784225

analogous

#25786B #255B78 #253178

triadic

#255B78 #78255B #5B7825

tetradic

#255B78 #6B2578 #784225 #317825

square

#255B78 #6B2578 #784225 #317825

split-complementary

#255B78 #782531 #786B25

monochromatic

#08141A #173849 #255B78 #337EA7 #4F9EC9

Accessibility & contrast

On white

7.38

#255B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#255B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B78

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B78	#FFFFFF	#000000	##FFFFFF
##255B78	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5A79

Deuteranopia (green-blind)

#425278

Tritanopia (blue-blind)

#006365

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #255b78;
/* rgb */ color: rgb(37, 91, 120);
/* oklch */ color: oklch(44.8% 0.074 235.3);

Tailwind

colors: {
  custom: {
    50: '#6a899f',
    500: '#255b78',
    950: '#000000',
  },
}

SCSS

$custom: #255b78;
$custom-light: #6a899f;
$custom-dark: #000000;

JSON

{
  "hex": "#255b78",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 120
  },
  "hsl": {
    "h": 200.964,
    "s": 52.866,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44846,
    "c": 0.07386,
    "h": 235.3
  },
  "luminance": 0.09232
}

Semantic roles & 50–950 ramp

primary

#255B78

secondary

#AA6F4E

accent

#7E4CDC

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #255B78

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

Preview Lab → · Contrast checker → · Palette generator →