#255F9A#255F9A

#255F9A is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.8% C 0.113 H 251.7°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#255F9A
RGB	rgb(37, 95, 154)
HSL	hsl(210, 61%, 37%)
HSV	hsv(210, 76%, 60%)
CMYK	cmyk(76%, 38.3%, 0%, 39.6%)
CIE-LAB	lab(39.43, 2.41, -37.56)
CIE-LCH	lch(39.43, 37.63, 273.67°)
OKLab	oklab(47.79% -0.0353 -0.107)
OKLCH	oklch(47.79% 0.113 251.7)
XYZ	xyz(10.6857, 10.9096, 32.1082)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255F9A #9A6025

analogous

#259A9A #255F9A #25259A

triadic

#255F9A #9A255F #5F9A25

tetradic

#255F9A #9A259A #9A6025 #259A25

square

#255F9A #9A259A #9A6025 #259A25

split-complementary

#255F9A #9A2525 #9A9A25

monochromatic

#0D2237 #194169 #255F9A #317DCB #609CD9

Accessibility & contrast

On white

6.60

#255F9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#255F9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255F9A

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255F9A	#FFFFFF	#000000	##FFFFFF
##255F9A	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44639C

Deuteranopia (green-blind)

#325899

Tritanopia (blue-blind)

#006D75

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255f9a;
/* rgb */ color: rgb(37, 95, 154);
/* oklch */ color: oklch(47.8% 0.113 251.7);

Tailwind

colors: {
  custom: {
    50: '#708cb8',
    500: '#255f9a',
    950: '#000000',
  },
}

SCSS

$custom: #255f9a;
$custom-light: #708cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#255f9a",
  "rgb": {
    "r": 37,
    "g": 95,
    "b": 154
  },
  "hsl": {
    "h": 210.256,
    "s": 61.257,
    "l": 37.451
  },
  "oklch": {
    "l": 0.47786,
    "c": 0.1127,
    "h": 251.7
  },
  "luminance": 0.10911
}

Semantic roles & 50–950 ramp

primary

#255F9A

secondary

#BE8E5D

accent

#9543E4

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C11

muted

#7B7D80

Preview Lab

Preview with #255F9A

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

Preview Lab → · Contrast checker → · Palette generator →