#253F69#253F69

#253F69 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 36.9% C 0.080 H 259.6°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#253F69
RGB	rgb(37, 63, 105)
HSL	hsl(217, 48%, 28%)
HSV	hsv(217, 65%, 41%)
CMYK	cmyk(64.8%, 40%, 0%, 58.8%)
CIE-LAB	lab(26.64, 4.65, -27.55)
CIE-LCH	lch(26.64, 27.94, 279.58°)
OKLab	oklab(36.89% -0.0144 -0.0782)
OKLCH	oklch(36.89% 0.08 259.6)
XYZ	xyz(5.0894, 4.9678, 14.0525)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F69 #694F25

analogous

#256169 #253F69 #2D2569

triadic

#253F69 #69253F #3F6925

tetradic

#253F69 #692561 #694F25 #25692D

square

#253F69 #692561 #694F25 #25692D

split-complementary

#253F69 #692D25 #616925

monochromatic

#080E17 #15243C #253F69 #355A96 #4976BF

Accessibility & contrast

On white

10.53

#253F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#253F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F69

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F69	#FFFFFF	#000000	##FFFFFF
##253F69	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D426B

Deuteranopia (green-blind)

#243C68

Tritanopia (blue-blind)

#00484F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253f69;
/* rgb */ color: rgb(37, 63, 105);
/* oklch */ color: oklch(36.9% 0.080 259.6);

Tailwind

colors: {
  custom: {
    50: '#677394',
    500: '#253f69',
    950: '#000000',
  },
}

SCSS

$custom: #253f69;
$custom-light: #677394;
$custom-dark: #000000;

JSON

{
  "hex": "#253f69",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 105
  },
  "hsl": {
    "h": 217.059,
    "s": 47.887,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36894,
    "c": 0.0795,
    "h": 259.6
  },
  "luminance": 0.04968
}

Semantic roles & 50–950 ramp

primary

#253F69

secondary

#9C7E4E

accent

#A450D7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #253F69

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

Preview Lab → · Contrast checker → · Palette generator →