#253BA8#253BA8

#253BA8 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.176 H 268.3°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#253BA8
RGB	rgb(37, 59, 168)
HSL	hsl(230, 64%, 40%)
HSV	hsv(230, 78%, 66%)
CMYK	cmyk(78%, 64.9%, 0%, 34.1%)
CIE-LAB	lab(30.27, 31.71, -60.74)
CIE-LCH	lch(30.27, 68.52, 297.57°)
OKLab	oklab(41.14% -0.0051 -0.1757)
OKLCH	oklch(41.14% 0.176 268.3)
XYZ	xyz(9.3923, 6.3473, 37.7683)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253BA8 #A89225

analogous

#257CA8 #253BA8 #5125A8

triadic

#253BA8 #A8253B #3BA825

tetradic

#253BA8 #A8257C #A89225 #25A851

square

#253BA8 #A8257C #A89225 #25A851

split-complementary

#253BA8 #A85125 #7CA825

monochromatic

#0F1844 #1A2976 #253BA8 #3751D3 #697DDE

Accessibility & contrast

On white

9.25

#253BA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#253BA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253BA8

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253BA8	#FFFFFF	#000000	##FFFFFF
##253BA8	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0041A6

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #253ba8;
/* rgb */ color: rgb(37, 59, 168);
/* oklch */ color: oklch(41.1% 0.176 268.3);

Tailwind

colors: {
  custom: {
    50: '#7571c3',
    500: '#253ba8',
    950: '#000000',
  },
}

SCSS

$custom: #253ba8;
$custom-light: #7571c3;
$custom-dark: #000000;

JSON

{
  "hex": "#253ba8",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 168
  },
  "hsl": {
    "h": 229.924,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41135,
    "c": 0.17581,
    "h": 268.3
  },
  "luminance": 0.06348
}

Semantic roles & 50–950 ramp

primary

#253BA8

secondary

#C4B465

accent

#CB41E7

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #253BA8

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

Preview Lab → · Contrast checker → · Palette generator →