#253D7F#253D7F

#253D7F is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.116 H 266.0°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#253D7F
RGB	rgb(37, 61, 127)
HSL	hsl(224, 55%, 32%)
HSV	hsv(224, 71%, 50%)
CMYK	cmyk(70.9%, 52%, 0%, 50.2%)
CIE-LAB	lab(27.47, 14.56, -40.16)
CIE-LCH	lch(27.47, 42.72, 289.93°)
OKLab	oklab(37.99% -0.008 -0.1153)
OKLCH	oklch(37.99% 0.116 266)
XYZ	xyz(6.2611, 5.2625, 20.7604)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D7F #7F6725

analogous

#256A7F #253D7F #3A257F

triadic

#253D7F #7F253D #3D7F25

tetradic

#253D7F #7F256A #7F6725 #257F3A

square

#253D7F #7F256A #7F6725 #257F3A

split-complementary

#253D7F #7F3A25 #6A7F25

monochromatic

#090F20 #172650 #253D7F #3354AE #5273CD

Accessibility & contrast

On white

10.23

#253D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#253D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D7F

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D7F	#FFFFFF	#000000	##FFFFFF
##253D7F	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174581

Deuteranopia (green-blind)

#003D7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #253d7f;
/* rgb */ color: rgb(37, 61, 127);
/* oklch */ color: oklch(38.0% 0.116 266.0);

Tailwind

colors: {
  custom: {
    50: '#6b72a5',
    500: '#253d7f',
    950: '#000000',
  },
}

SCSS

$custom: #253d7f;
$custom-light: #6b72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#253d7f",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 224,
    "s": 54.878,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37994,
    "c": 0.11555,
    "h": 266
  },
  "luminance": 0.05263
}

Semantic roles & 50–950 ramp

primary

#253D7F

secondary

#B1974F

accent

#B74ADE

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #253D7F

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

Preview Lab → · Contrast checker → · Palette generator →