#253B6A#253B6A

#253B6A is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.086 H 263.7°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#253B6A
RGB	rgb(37, 59, 106)
HSL	hsl(221, 48%, 28%)
HSV	hsv(221, 65%, 42%)
CMYK	cmyk(65.1%, 44.3%, 0%, 58.4%)
CIE-LAB	lab(25.45, 7.79, -30.09)
CIE-LCH	lch(25.45, 31.08, 284.51°)
OKLab	oklab(35.99% -0.0094 -0.0857)
OKLCH	oklch(35.99% 0.086 263.7)
XYZ	xyz(4.9275, 4.5614, 14.2536)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B6A #6A5425

analogous

#255D6A #253B6A #32256A

triadic

#253B6A #6A253B #3B6A25

tetradic

#253B6A #6A255D #6A5425 #256A32

square

#253B6A #6A255D #6A5425 #256A32

split-complementary

#253B6A #6A3225 #5D6A25

monochromatic

#080D17 #15223D #253B6A #355497 #4A6FC0

Accessibility & contrast

On white

10.98

#253B6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#253B6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B6A

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B6A	#FFFFFF	#000000	##FFFFFF
##253B6A	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26406C

Deuteranopia (green-blind)

#1C3969

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #253b6a;
/* rgb */ color: rgb(37, 59, 106);
/* oklch */ color: oklch(36.0% 0.086 263.7);

Tailwind

colors: {
  custom: {
    50: '#677095',
    500: '#253b6a',
    950: '#000000',
  },
}

SCSS

$custom: #253b6a;
$custom-light: #677095;
$custom-dark: #000000;

JSON

{
  "hex": "#253b6a",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 106
  },
  "hsl": {
    "h": 220.87,
    "s": 48.252,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35989,
    "c": 0.08621,
    "h": 263.7
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#253B6A

secondary

#9D844E

accent

#AD50D8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253B6A

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

Preview Lab → · Contrast checker → · Palette generator →