#253B79#253B79

#253B79 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.109 H 266.4°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#253B79
RGB	rgb(37, 59, 121)
HSL	hsl(224, 53%, 31%)
HSV	hsv(224, 69%, 47%)
CMYK	cmyk(69.4%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(26.45, 13.61, -38.03)
CIE-LCH	lch(26.45, 40.39, 289.69°)
OKLab	oklab(37.08% -0.0068 -0.109)
OKLCH	oklch(37.08% 0.109 266.4)
XYZ	xyz(5.7769, 4.9012, 18.7270)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B79 #796325

analogous

#256579 #253B79 #392579

triadic

#253B79 #79253B #3B7925

tetradic

#253B79 #792565 #796325 #257939

square

#253B79 #792565 #796325 #257939

split-complementary

#253B79 #793925 #657925

monochromatic

#080D1B #17244A #253B79 #3352A8 #4F6FC9

Accessibility & contrast

On white

10.60

#253B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#253B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B79

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B79	#FFFFFF	#000000	##FFFFFF
##253B79	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19437B

Deuteranopia (green-blind)

#033B78

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253b79;
/* rgb */ color: rgb(37, 59, 121);
/* oklch */ color: oklch(37.1% 0.109 266.4);

Tailwind

colors: {
  custom: {
    50: '#6a70a0',
    500: '#253b79',
    950: '#000000',
  },
}

SCSS

$custom: #253b79;
$custom-light: #6a70a0;
$custom-dark: #000000;

JSON

{
  "hex": "#253b79",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 224.286,
    "s": 53.165,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37082,
    "c": 0.10924,
    "h": 266.4
  },
  "luminance": 0.04902
}

Semantic roles & 50–950 ramp

primary

#253B79

secondary

#AB934E

accent

#B74BDD

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #253B79

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

Preview Lab → · Contrast checker → · Palette generator →