#255B7A#255B7A

#255B7A is a dark, moderate cyan. Relative luminance 0.093; OKLCH L 45.0% C 0.076 H 237.1°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#255B7A
RGB	rgb(37, 91, 122)
HSL	hsl(202, 53%, 31%)
HSV	hsv(202, 70%, 48%)
CMYK	cmyk(69.7%, 25.4%, 0%, 52.2%)
CIE-LAB	lab(36.52, -7.10, -22.72)
CIE-LCH	lch(36.52, 23.80, 252.63°)
OKLab	oklab(44.95% -0.0413 -0.0639)
OKLCH	oklch(44.95% 0.076 237.1)
XYZ	xyz(8.0155, 9.2798, 19.7773)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B7A #7A4425

analogous

#257A6E #255B7A #25307A

triadic

#255B7A #7A255B #5B7A25

tetradic

#255B7A #6E257A #7A4425 #307A25

square

#255B7A #6E257A #7A4425 #307A25

split-complementary

#255B7A #7A2530 #7A6E25

monochromatic

#09151C #17384B #255B7A #337EA9 #509DCA

Accessibility & contrast

On white

7.35

#255B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#255B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B7A

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B7A	#FFFFFF	#000000	##FFFFFF
##255B7A	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5B7B

Deuteranopia (green-blind)

#415279

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #255b7a;
/* rgb */ color: rgb(37, 91, 122);
/* oklch */ color: oklch(45.0% 0.076 237.1);

Tailwind

colors: {
  custom: {
    50: '#6a89a0',
    500: '#255b7a',
    950: '#000000',
  },
}

SCSS

$custom: #255b7a;
$custom-light: #6a89a0;
$custom-dark: #000000;

JSON

{
  "hex": "#255b7a",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 122
  },
  "hsl": {
    "h": 201.882,
    "s": 53.459,
    "l": 31.176
  },
  "oklch": {
    "l": 0.4495,
    "c": 0.07605,
    "h": 237.1
  },
  "luminance": 0.09281
}

Semantic roles & 50–950 ramp

primary

#255B7A

secondary

#AC714E

accent

#804BDD

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #255B7A

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

Preview Lab → · Contrast checker → · Palette generator →