#253F80#253F80

#253F80 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.5% C 0.114 H 265.1°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#253F80
RGB	rgb(37, 63, 128)
HSL	hsl(223, 55%, 32%)
HSV	hsv(223, 71%, 50%)
CMYK	cmyk(71.1%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(28.13, 13.57, -39.72)
CIE-LCH	lch(28.13, 41.98, 288.86°)
OKLab	oklab(38.52% -0.0098 -0.1139)
OKLCH	oklch(38.52% 0.114 265.1)
XYZ	xyz(6.4354, 5.5062, 21.1415)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F80 #806625

analogous

#256D80 #253F80 #382580

triadic

#253F80 #80253F #3F8025

tetradic

#253F80 #80256D #806625 #258038

square

#253F80 #80256D #806625 #258038

split-complementary

#253F80 #803825 #6D8025

monochromatic

#0A1021 #172851 #253F80 #3356AF #5275CD

Accessibility & contrast

On white

9.99

#253F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#253F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F80

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F80	#FFFFFF	#000000	##FFFFFF
##253F80	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4782

Deuteranopia (green-blind)

#013E7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253f80;
/* rgb */ color: rgb(37, 63, 128);
/* oklch */ color: oklch(38.5% 0.114 265.1);

Tailwind

colors: {
  custom: {
    50: '#6b73a5',
    500: '#253f80',
    950: '#000000',
  },
}

SCSS

$custom: #253f80;
$custom-light: #6b73a5;
$custom-dark: #000000;

JSON

{
  "hex": "#253f80",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 222.857,
    "s": 55.152,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3852,
    "c": 0.11436,
    "h": 265.1
  },
  "luminance": 0.05507
}

Semantic roles & 50–950 ramp

primary

#253F80

secondary

#B19550

accent

#B449DE

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #253F80

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

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