#253D66#253D66

#253D66 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.2% C 0.077 H 260.5°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#253D66
RGB	rgb(37, 61, 102)
HSL	hsl(218, 47%, 27%)
HSV	hsv(218, 64%, 40%)
CMYK	cmyk(63.7%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.83, 4.88, -26.91)
CIE-LCH	lch(25.83, 27.35, 280.28°)
OKLab	oklab(36.21% -0.0128 -0.0763)
OKLCH	oklch(36.21% 0.077 260.5)
XYZ	xyz(4.8291, 4.6897, 13.2185)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D66 #664E25

analogous

#255E66 #253D66 #2D2566

triadic

#253D66 #66253D #3D6625

tetradic

#253D66 #66255E #664E25 #25662D

square

#253D66 #66255E #664E25 #25662D

split-complementary

#253D66 #662D25 #5E6625

monochromatic

#080D16 #152239 #253D66 #355893 #4973BD

Accessibility & contrast

On white

10.84

#253D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#253D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D66

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D66	#FFFFFF	#000000	##FFFFFF
##253D66	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4068

Deuteranopia (green-blind)

#233A65

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253d66;
/* rgb */ color: rgb(37, 61, 102);
/* oklch */ color: oklch(36.2% 0.077 260.5);

Tailwind

colors: {
  custom: {
    50: '#667292',
    500: '#253d66',
    950: '#000000',
  },
}

SCSS

$custom: #253d66;
$custom-light: #667292;
$custom-dark: #000000;

JSON

{
  "hex": "#253d66",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 217.846,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36207,
    "c": 0.0774,
    "h": 260.5
  },
  "luminance": 0.0469
}

Semantic roles & 50–950 ramp

primary

#253D66

secondary

#997D4E

accent

#A551D6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253D66

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

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