#255D7B#255D7B

#255D7B is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.5% C 0.076 H 235.4°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#255D7B
RGB	rgb(37, 93, 123)
HSL	hsl(201, 54%, 31%)
HSV	hsv(201, 70%, 48%)
CMYK	cmyk(69.9%, 24.4%, 0%, 51.8%)
CIE-LAB	lab(37.21, -7.96, -22.26)
CIE-LCH	lch(37.21, 23.64, 250.33°)
OKLab	oklab(45.52% -0.0432 -0.0625)
OKLCH	oklch(45.52% 0.076 235.4)
XYZ	xyz(8.2511, 9.6512, 20.1631)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D7B #7B4325

analogous

#257B6E #255D7B #25327B

triadic

#255D7B #7B255D #5D7B25

tetradic

#255D7B #6E257B #7B4325 #327B25

square

#255D7B #6E257B #7B4325 #327B25

split-complementary

#255D7B #7B2532 #7B6E25

monochromatic

#09161D #17394C #255D7B #3381AA #50A0CA

Accessibility & contrast

On white

7.17

#255D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#255D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255D7B

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D7B	#FFFFFF	#000000	##FFFFFF
##255D7B	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5C7C

Deuteranopia (green-blind)

#43547B

Tritanopia (blue-blind)

#006567

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255d7b;
/* rgb */ color: rgb(37, 93, 123);
/* oklch */ color: oklch(45.5% 0.076 235.4);

Tailwind

colors: {
  custom: {
    50: '#6a8aa1',
    500: '#255d7b',
    950: '#000000',
  },
}

SCSS

$custom: #255d7b;
$custom-light: #6a8aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#255d7b",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 123
  },
  "hsl": {
    "h": 200.93,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.45515,
    "c": 0.07597,
    "h": 235.4
  },
  "luminance": 0.09652
}

Semantic roles & 50–950 ramp

primary

#255D7B

secondary

#AD704F

accent

#7E4BDD

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #255D7B

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

Preview Lab → · Contrast checker → · Palette generator →