#253B90#253B90

#253B90 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.0% C 0.143 H 268.0°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#253B90
RGB	rgb(37, 59, 144)
HSL	hsl(228, 59%, 35%)
HSV	hsv(228, 74%, 56%)
CMYK	cmyk(74.3%, 59%, 0%, 43.5%)
CIE-LAB	lab(28.21, 22.57, -49.53)
CIE-LCH	lch(28.21, 54.43, 294.50°)
OKLab	oklab(38.96% -0.005 -0.1428)
OKLCH	oklch(38.96% 0.143 268)
XYZ	xyz(7.3592, 5.5341, 27.0605)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B90 #907A25

analogous

#257090 #253B90 #452590

triadic

#253B90 #90253B #3B9025

tetradic

#253B90 #902570 #907A25 #259045

square

#253B90 #902570 #907A25 #259045

split-complementary

#253B90 #904525 #709025

monochromatic

#0C132F #18275F #253B90 #324FC1 #5B74D5

Accessibility & contrast

On white

9.97

#253B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#253B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B90

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B90	#FFFFFF	#000000	##FFFFFF
##253B90	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004893

Deuteranopia (green-blind)

#003E8E

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253b90;
/* rgb */ color: rgb(37, 59, 144);
/* oklch */ color: oklch(39.0% 0.143 268.0);

Tailwind

colors: {
  custom: {
    50: '#6f70b1',
    500: '#253b90',
    950: '#000000',
  },
}

SCSS

$custom: #253b90;
$custom-light: #6f70b1;
$custom-dark: #000000;

JSON

{
  "hex": "#253b90",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 144
  },
  "hsl": {
    "h": 227.664,
    "s": 59.116,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38961,
    "c": 0.14294,
    "h": 268
  },
  "luminance": 0.05535
}

Semantic roles & 50–950 ramp

primary

#253B90

secondary

#B9A557

accent

#C245E2

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #253B90

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

Preview Lab → · Contrast checker → · Palette generator →