#253EB2#253EB2

#253EB2 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.185 H 267.8°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#253EB2
RGB	rgb(37, 62, 178)
HSL	hsl(229, 66%, 42%)
HSV	hsv(229, 79%, 70%)
CMYK	cmyk(79.2%, 65.2%, 0%, 30.2%)
CIE-LAB	lab(31.92, 33.48, -64.01)
CIE-LCH	lch(31.92, 72.24, 297.61°)
OKLab	oklab(42.63% -0.0072 -0.1853)
OKLCH	oklch(42.63% 0.185 267.8)
XYZ	xyz(10.5187, 7.0517, 42.9176)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EB2 #B29925

analogous

#2584B2 #253EB2 #5325B2

triadic

#253EB2 #B2253E #3EB225

tetradic

#253EB2 #B22584 #B29925 #25B253

square

#253EB2 #B22584 #B29925 #25B253

split-complementary

#253EB2 #B25325 #84B225

monochromatic

#101B4D #1A2C7F #253EB2 #3D59D7 #7084E1

Accessibility & contrast

On white

8.71

#253EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#253EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EB2

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EB2	#FFFFFF	#000000	##FFFFFF
##253EB2	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #253eb2;
/* rgb */ color: rgb(37, 62, 178);
/* oklch */ color: oklch(42.6% 0.185 267.8);

Tailwind

colors: {
  custom: {
    50: '#7873ca',
    500: '#253eb2',
    950: '#000000',
  },
}

SCSS

$custom: #253eb2;
$custom-light: #7873ca;
$custom-dark: #000000;

JSON

{
  "hex": "#253eb2",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 178
  },
  "hsl": {
    "h": 229.362,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42627,
    "c": 0.18542,
    "h": 267.8
  },
  "luminance": 0.07053
}

Semantic roles & 50–950 ramp

primary

#253EB2

secondary

#C8B86B

accent

#CB3FE9

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #253EB2

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

Preview Lab → · Contrast checker → · Palette generator →