#255A7A#255A7A

#255A7A is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.7% C 0.077 H 238.4°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#255A7A
RGB	rgb(37, 90, 122)
HSL	hsl(203, 53%, 31%)
HSV	hsv(203, 70%, 48%)
CMYK	cmyk(69.7%, 26.2%, 0%, 52.2%)
CIE-LAB	lab(36.20, -6.49, -23.22)
CIE-LCH	lch(36.20, 24.11, 254.38°)
OKLab	oklab(44.69% -0.0402 -0.0653)
OKLCH	oklch(44.69% 0.077 238.4)
XYZ	xyz(7.9306, 9.1099, 19.7490)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A7A #7A4525

analogous

#257A6F #255A7A #252F7A

triadic

#255A7A #7A255A #5A7A25

tetradic

#255A7A #6F257A #7A4525 #2F7A25

square

#255A7A #6F257A #7A4525 #2F7A25

split-complementary

#255A7A #7A252F #7A6F25

monochromatic

#09151C #17374B #255A7A #337DA9 #509CCA

Accessibility & contrast

On white

7.44

#255A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#255A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A7A

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A7A	#FFFFFF	#000000	##FFFFFF
##255A7A	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5A7B

Deuteranopia (green-blind)

#3F5179

Tritanopia (blue-blind)

#006265

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #255a7a;
/* rgb */ color: rgb(37, 90, 122);
/* oklch */ color: oklch(44.7% 0.077 238.4);

Tailwind

colors: {
  custom: {
    50: '#6a88a0',
    500: '#255a7a',
    950: '#000000',
  },
}

SCSS

$custom: #255a7a;
$custom-light: #6a88a0;
$custom-dark: #000000;

JSON

{
  "hex": "#255a7a",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 122
  },
  "hsl": {
    "h": 202.588,
    "s": 53.459,
    "l": 31.176
  },
  "oklch": {
    "l": 0.44694,
    "c": 0.07668,
    "h": 238.4
  },
  "luminance": 0.09111
}

Semantic roles & 50–950 ramp

primary

#255A7A

secondary

#AC724E

accent

#824BDD

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #255A7A

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

Preview Lab → · Contrast checker → · Palette generator →