#253CB2#253CB2

#253CB2 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.188 H 268.1°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#253CB2
RGB	rgb(37, 60, 178)
HSL	hsl(230, 66%, 42%)
HSV	hsv(230, 79%, 70%)
CMYK	cmyk(79.2%, 66.3%, 0%, 30.2%)
CIE-LAB	lab(31.44, 34.78, -64.81)
CIE-LCH	lch(31.44, 73.55, 298.22°)
OKLab	oklab(42.27% -0.0061 -0.1876)
OKLCH	oklch(42.27% 0.188 268.1)
XYZ	xyz(10.4119, 6.8382, 42.8820)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253CB2 #B29B25

analogous

#2582B2 #253CB2 #5525B2

triadic

#253CB2 #B2253C #3CB225

tetradic

#253CB2 #B22582 #B29B25 #25B255

square

#253CB2 #B22582 #B29B25 #25B255

split-complementary

#253CB2 #B25525 #82B225

monochromatic

#101A4D #1A2B7F #253CB2 #3D56D7 #7083E1

Accessibility & contrast

On white

8.87

#253CB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#253CB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253CB2

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253CB2	#FFFFFF	#000000	##FFFFFF
##253CB2	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0043B0

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #253cb2;
/* rgb */ color: rgb(37, 60, 178);
/* oklch */ color: oklch(42.3% 0.188 268.1);

Tailwind

colors: {
  custom: {
    50: '#7871ca',
    500: '#253cb2',
    950: '#000000',
  },
}

SCSS

$custom: #253cb2;
$custom-light: #7871ca;
$custom-dark: #000000;

JSON

{
  "hex": "#253cb2",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 178
  },
  "hsl": {
    "h": 230.213,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42268,
    "c": 0.18774,
    "h": 268.1
  },
  "luminance": 0.06839
}

Semantic roles & 50–950 ramp

primary

#253CB2

secondary

#C8B96B

accent

#CD3FE9

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #253CB2

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

Preview Lab → · Contrast checker → · Palette generator →