#255DAE#255DAE

#255DAE is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.142 H 258.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#255DAE
RGB	rgb(37, 93, 174)
HSL	hsl(215, 65%, 41%)
HSV	hsv(215, 79%, 68%)
CMYK	cmyk(78.7%, 46.6%, 0%, 31.8%)
CIE-LAB	lab(40.04, 11.44, -48.46)
CIE-LCH	lch(40.04, 49.79, 283.29°)
OKLab	oklab(48.66% -0.0292 -0.1391)
OKLCH	oklch(48.66% 0.142 258.2)
XYZ	xyz(12.3145, 11.2766, 41.5638)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255DAE #AE7625

analogous

#25A2AE #255DAE #3125AE

triadic

#255DAE #AE255D #5DAE25

tetradic

#255DAE #AE25A2 #AE7625 #25AE31

square

#255DAE #AE25A2 #AE7625 #25AE31

split-complementary

#255DAE #AE3125 #A2AE25

monochromatic

#102749 #1A427C #255DAE #3B7AD5 #6D9CE0

Accessibility & contrast

On white

6.45

#255DAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#255DAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255DAE

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255DAE	#FFFFFF	#000000	##FFFFFF
##255DAE	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3265B1

Deuteranopia (green-blind)

#0E59AC

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #255dae;
/* rgb */ color: rgb(37, 93, 174);
/* oklch */ color: oklch(48.7% 0.142 258.2);

Tailwind

colors: {
  custom: {
    50: '#758ac7',
    500: '#255dae',
    950: '#000000',
  },
}

SCSS

$custom: #255dae;
$custom-light: #758ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#255dae",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 174
  },
  "hsl": {
    "h": 215.474,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48655,
    "c": 0.14211,
    "h": 258.2
  },
  "luminance": 0.11278
}

Semantic roles & 50–950 ramp

primary

#255DAE

secondary

#C6A068

accent

#A340E8

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #255DAE

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

Preview Lab → · Contrast checker → · Palette generator →