#253C7B#253C7B

#253C7B is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.111 H 266.1°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#253C7B
RGB	rgb(37, 60, 123)
HSL	hsl(224, 54%, 31%)
HSV	hsv(224, 70%, 48%)
CMYK	cmyk(69.9%, 51.2%, 0%, 51.8%)
CIE-LAB	lab(26.89, 13.69, -38.59)
CIE-LCH	lch(26.89, 40.95, 289.54°)
OKLab	oklab(37.46% -0.0075 -0.1106)
OKLCH	oklch(37.46% 0.111 266.1)
XYZ	xyz(5.9527, 5.0545, 19.3970)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C7B #7B6425

analogous

#25677B #253C7B #39257B

triadic

#253C7B #7B253C #3C7B25

tetradic

#253C7B #7B2567 #7B6425 #257B39

square

#253C7B #7B2567 #7B6425 #257B39

split-complementary

#253C7B #7B3925 #677B25

monochromatic

#090E1D #17254C #253C7B #3353AA #5071CA

Accessibility & contrast

On white

10.44

#253C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#253C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C7B

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C7B	#FFFFFF	#000000	##FFFFFF
##253C7B	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19447D

Deuteranopia (green-blind)

#023C7A

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253c7b;
/* rgb */ color: rgb(37, 60, 123);
/* oklch */ color: oklch(37.5% 0.111 266.1);

Tailwind

colors: {
  custom: {
    50: '#6a71a2',
    500: '#253c7b',
    950: '#000000',
  },
}

SCSS

$custom: #253c7b;
$custom-light: #6a71a2;
$custom-dark: #000000;

JSON

{
  "hex": "#253c7b",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 123
  },
  "hsl": {
    "h": 223.953,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37461,
    "c": 0.11091,
    "h": 266.1
  },
  "luminance": 0.05055
}

Semantic roles & 50–950 ramp

primary

#253C7B

secondary

#AD944F

accent

#B64BDD

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #253C7B

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

Preview Lab → · Contrast checker → · Palette generator →