#252B4E#252B4E

#252B4E is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.2% C 0.064 H 274.6°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#252B4E
RGB	rgb(37, 43, 78)
HSL	hsl(231, 36%, 23%)
HSV	hsv(231, 53%, 31%)
CMYK	cmyk(52.6%, 44.9%, 0%, 69.4%)
CIE-LAB	lab(18.68, 8.58, -22.43)
CIE-LCH	lch(18.68, 24.02, 290.93°)
OKLab	oklab(30.21% 0.0051 -0.0634)
OKLCH	oklch(30.21% 0.064 274.6)
XYZ	xyz(3.0015, 2.6710, 7.5636)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B4E #4E4825

analogous

#253F4E #252B4E #34254E

triadic

#252B4E #4E252B #2B4E25

tetradic

#252B4E #4E253F #4E4825 #254E34

square

#252B4E #4E253F #4E4825 #254E34

split-complementary

#252B4E #4E3425 #3F4E25

monochromatic

#0A0B15 #111424 #252B4E #394278 #4C59A1

Accessibility & contrast

On white

13.69

#252B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#252B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B4E

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B4E	#FFFFFF	#000000	##FFFFFF
##252B4E	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E2F4F

Deuteranopia (green-blind)

#1A2C4D

Tritanopia (blue-blind)

#153238

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #252b4e;
/* rgb */ color: rgb(37, 43, 78);
/* oklch */ color: oklch(30.2% 0.064 274.6);

Tailwind

colors: {
  custom: {
    50: '#626480',
    500: '#252b4e',
    950: '#000000',
  },
}

SCSS

$custom: #252b4e;
$custom-light: #626480;
$custom-dark: #000000;

JSON

{
  "hex": "#252b4e",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 78
  },
  "hsl": {
    "h": 231.22,
    "s": 35.652,
    "l": 22.549
  },
  "oklch": {
    "l": 0.30211,
    "c": 0.06364,
    "h": 274.6
  },
  "luminance": 0.02671
}

Semantic roles & 50–950 ramp

primary

#252B4E

secondary

#817A4E

accent

#BB5CCC

background

#F5F5F7

surface

#EAEAEE

border

#C6C6C9

text

#05050A

muted

#79797C

Preview Lab

Preview with #252B4E

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

Preview Lab → · Contrast checker → · Palette generator →