#253B7B#253B7B

#253B7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.112 H 266.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#253B7B
RGB	rgb(37, 59, 123)
HSL	hsl(225, 54%, 31%)
HSV	hsv(225, 70%, 48%)
CMYK	cmyk(69.9%, 52%, 0%, 51.8%)
CIE-LAB	lab(26.59, 14.39, -39.06)
CIE-LCH	lch(26.59, 41.63, 290.22°)
OKLab	oklab(37.24% -0.0065 -0.1121)
OKLCH	oklch(37.24% 0.112 266.7)
XYZ	xyz(5.9008, 4.9507, 19.3797)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B7B #7B6525

analogous

#25667B #253B7B #3A257B

triadic

#253B7B #7B253B #3B7B25

tetradic

#253B7B #7B2566 #7B6525 #257B3A

square

#253B7B #7B2566 #7B6525 #257B3A

split-complementary

#253B7B #7B3A25 #667B25

monochromatic

#090E1D #17244C #253B7B #3352AA #506FCA

Accessibility & contrast

On white

10.55

#253B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#253B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B7B

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B7B	#FFFFFF	#000000	##FFFFFF
##253B7B	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16437D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253b7b;
/* rgb */ color: rgb(37, 59, 123);
/* oklch */ color: oklch(37.2% 0.112 266.7);

Tailwind

colors: {
  custom: {
    50: '#6a70a2',
    500: '#253b7b',
    950: '#000000',
  },
}

SCSS

$custom: #253b7b;
$custom-light: #6a70a2;
$custom-dark: #000000;

JSON

{
  "hex": "#253b7b",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 123
  },
  "hsl": {
    "h": 224.651,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37236,
    "c": 0.11226,
    "h": 266.7
  },
  "luminance": 0.04951
}

Semantic roles & 50–950 ramp

primary

#253B7B

secondary

#AD954F

accent

#B84BDD

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #253B7B

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

Preview Lab → · Contrast checker → · Palette generator →