#255F6F#255F6F

#255F6F is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.5% C 0.065 H 219.0°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#255F6F
RGB	rgb(37, 95, 111)
HSL	hsl(193, 50%, 29%)
HSV	hsv(193, 67%, 44%)
CMYK	cmyk(66.7%, 14.4%, 0%, 56.5%)
CIE-LAB	lab(37.34, -13.36, -14.67)
CIE-LCH	lch(37.34, 19.84, 227.67°)
OKLab	oklab(45.45% -0.0503 -0.0408)
OKLCH	oklch(45.45% 0.065 219)
XYZ	xyz(7.7232, 9.7246, 16.5059)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255F6F #6F3525

analogous

#256F5A #255F6F #253A6F

triadic

#255F6F #6F255F #5F6F25

tetradic

#255F6F #5A256F #6F3525 #3A6F25

square

#255F6F #5A256F #6F3525 #3A6F25

split-complementary

#255F6F #6F253A #6F5A25

monochromatic

#081417 #163841 #255F6F #34869D #4BA9C3

Accessibility & contrast

On white

7.13

#255F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#255F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255F6F

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255F6F	#FFFFFF	#000000	##FFFFFF
##255F6F	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555C70

Deuteranopia (green-blind)

#4A546F

Tritanopia (blue-blind)

#006464

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255f6f;
/* rgb */ color: rgb(37, 95, 111);
/* oklch */ color: oklch(45.5% 0.065 219.0);

Tailwind

colors: {
  custom: {
    50: '#698c98',
    500: '#255f6f',
    950: '#000000',
  },
}

SCSS

$custom: #255f6f;
$custom-light: #698c98;
$custom-dark: #000000;

JSON

{
  "hex": "#255f6f",
  "rgb": {
    "r": 37,
    "g": 95,
    "b": 111
  },
  "hsl": {
    "h": 192.973,
    "s": 50,
    "l": 29.02
  },
  "oklch": {
    "l": 0.45451,
    "c": 0.06479,
    "h": 219
  },
  "luminance": 0.09725
}

Semantic roles & 50–950 ramp

primary

#255F6F

secondary

#A2604E

accent

#6C4EDA

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0D

muted

#7A7D7E

Preview Lab

Preview with #255F6F

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

Preview Lab → · Contrast checker → · Palette generator →