#253A63#253A63

#253A63 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.3% C 0.077 H 262.6°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#253A63
RGB	rgb(37, 58, 99)
HSL	hsl(220, 46%, 27%)
HSV	hsv(220, 63%, 39%)
CMYK	cmyk(62.6%, 41.4%, 0%, 61.2%)
CIE-LAB	lab(24.70, 5.81, -26.76)
CIE-LCH	lch(24.70, 27.38, 282.25°)
OKLab	oklab(35.27% -0.0099 -0.0759)
OKLCH	oklch(35.27% 0.077 262.6)
XYZ	xyz(4.5274, 4.3199, 12.3972)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253A63 #634E25

analogous

#255963 #253A63 #2F2563

triadic

#253A63 #63253A #3A6325

tetradic

#253A63 #632559 #634E25 #25632F

square

#253A63 #632559 #634E25 #25632F

split-complementary

#253A63 #632F25 #596325

monochromatic

#080D16 #142036 #253A63 #365490 #486FBB

Accessibility & contrast

On white

11.27

#253A63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#253A63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253A63

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253A63	#FFFFFF	#000000	##FFFFFF
##253A63	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293E65

Deuteranopia (green-blind)

#203862

Tritanopia (blue-blind)

#004349

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #253a63;
/* rgb */ color: rgb(37, 58, 99);
/* oklch */ color: oklch(35.3% 0.077 262.6);

Tailwind

colors: {
  custom: {
    50: '#656f8f',
    500: '#253a63',
    950: '#000000',
  },
}

SCSS

$custom: #253a63;
$custom-light: #656f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#253a63",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 99
  },
  "hsl": {
    "h": 219.677,
    "s": 45.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35273,
    "c": 0.07658,
    "h": 262.6
  },
  "luminance": 0.0432
}

Semantic roles & 50–950 ramp

primary

#253A63

secondary

#967E4E

accent

#A953D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #253A63

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

Preview Lab → · Contrast checker → · Palette generator →