#253D7C#253D7C

#253D7C is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.111 H 265.7°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#253D7C
RGB	rgb(37, 61, 124)
HSL	hsl(223, 54%, 32%)
HSV	hsv(223, 70%, 49%)
CMYK	cmyk(70.2%, 50.8%, 0%, 51.4%)
CIE-LAB	lab(27.26, 13.39, -38.63)
CIE-LCH	lch(27.26, 40.88, 289.12°)
OKLab	oklab(37.76% -0.0084 -0.1107)
OKLCH	oklch(37.76% 0.111 265.7)
XYZ	xyz(6.0685, 5.1854, 19.7460)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D7C #7C6425

analogous

#25697C #253D7C #39257C

triadic

#253D7C #7C253D #3D7C25

tetradic

#253D7C #7C2569 #7C6425 #257C39

square

#253D7C #7C2569 #7C6425 #257C39

split-complementary

#253D7C #7C3925 #697C25

monochromatic

#090F1E #17264D #253D7C #3354AB #5072CB

Accessibility & contrast

On white

10.31

#253D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#253D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D7C

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D7C	#FFFFFF	#000000	##FFFFFF
##253D7C	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B457E

Deuteranopia (green-blind)

#033D7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253d7c;
/* rgb */ color: rgb(37, 61, 124);
/* oklch */ color: oklch(37.8% 0.111 265.7);

Tailwind

colors: {
  custom: {
    50: '#6b72a2',
    500: '#253d7c',
    950: '#000000',
  },
}

SCSS

$custom: #253d7c;
$custom-light: #6b72a2;
$custom-dark: #000000;

JSON

{
  "hex": "#253d7c",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 223.448,
    "s": 54.037,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37764,
    "c": 0.11106,
    "h": 265.7
  },
  "luminance": 0.05186
}

Semantic roles & 50–950 ramp

primary

#253D7C

secondary

#AE944F

accent

#B54ADD

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #253D7C

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

Preview Lab → · Contrast checker → · Palette generator →