#253F8D#253F8D

#253F8D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.133 H 266.4°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#253F8D
RGB	rgb(37, 63, 141)
HSL	hsl(225, 58%, 35%)
HSV	hsv(225, 74%, 55%)
CMYK	cmyk(73.8%, 55.3%, 0%, 44.7%)
CIE-LAB	lab(29.08, 18.66, -46.25)
CIE-LCH	lch(29.08, 49.88, 291.97°)
OKLab	oklab(39.55% -0.0084 -0.1332)
OKLCH	oklch(39.55% 0.133 266.4)
XYZ	xyz(7.3465, 5.8706, 25.9401)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F8D #8D7325

analogous

#25738D #253F8D #3F258D

triadic

#253F8D #8D253F #3F8D25

tetradic

#253F8D #8D2573 #8D7325 #258D3F

square

#253F8D #8D2573 #8D7325 #258D3F

split-complementary

#253F8D #8D3F25 #738D25

monochromatic

#0C142C #18295D #253F8D #3255BD #5978D3

Accessibility & contrast

On white

9.66

#253F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#253F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F8D

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F8D	#FFFFFF	#000000	##FFFFFF
##253F8D	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024A90

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253f8d;
/* rgb */ color: rgb(37, 63, 141);
/* oklch */ color: oklch(39.5% 0.133 266.4);

Tailwind

colors: {
  custom: {
    50: '#6e73af',
    500: '#253f8d',
    950: '#000000',
  },
}

SCSS

$custom: #253f8d;
$custom-light: #6e73af;
$custom-dark: #000000;

JSON

{
  "hex": "#253f8d",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 141
  },
  "hsl": {
    "h": 225,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39547,
    "c": 0.13343,
    "h": 266.4
  },
  "luminance": 0.05871
}

Semantic roles & 50–950 ramp

primary

#253F8D

secondary

#B89F56

accent

#BB46E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #253F8D

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

Preview Lab → · Contrast checker → · Palette generator →