#253BA4#253BA4

#253BA4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.170 H 268.3°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#253BA4
RGB	rgb(37, 59, 164)
HSL	hsl(230, 63%, 39%)
HSV	hsv(230, 77%, 64%)
CMYK	cmyk(77.4%, 64%, 0%, 35.7%)
CIE-LAB	lab(29.91, 30.21, -58.93)
CIE-LCH	lch(29.91, 66.22, 297.14°)
OKLab	oklab(40.76% -0.005 -0.1704)
OKLCH	oklch(40.76% 0.17 268.3)
XYZ	xyz(9.0254, 6.2006, 35.8359)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253BA4 #A48E25

analogous

#257BA4 #253BA4 #4E25A4

triadic

#253BA4 #A4253B #3BA425

tetradic

#253BA4 #A4257B #A48E25 #25A44E

square

#253BA4 #A4257B #A48E25 #25A44E

split-complementary

#253BA4 #A44E25 #7BA425

monochromatic

#0E1740 #1A2972 #253BA4 #3550D1 #677BDD

Accessibility & contrast

On white

9.37

#253BA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#253BA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253BA4

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253BA4	#FFFFFF	#000000	##FFFFFF
##253BA4	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA7

Deuteranopia (green-blind)

#0041A2

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253ba4;
/* rgb */ color: rgb(37, 59, 164);
/* oklch */ color: oklch(40.8% 0.170 268.3);

Tailwind

colors: {
  custom: {
    50: '#7470c0',
    500: '#253ba4',
    950: '#000000',
  },
}

SCSS

$custom: #253ba4;
$custom-light: #7470c0;
$custom-dark: #000000;

JSON

{
  "hex": "#253ba4",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 164
  },
  "hsl": {
    "h": 229.606,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40759,
    "c": 0.17049,
    "h": 268.3
  },
  "luminance": 0.06202
}

Semantic roles & 50–950 ramp

primary

#253BA4

secondary

#C2B262

accent

#CA42E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #253BA4

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

Preview Lab → · Contrast checker → · Palette generator →