#253C91#253C91

#253C91 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.143 H 267.7°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#253C91
RGB	rgb(37, 60, 145)
HSL	hsl(227, 59%, 36%)
HSV	hsv(227, 74%, 57%)
CMYK	cmyk(74.5%, 58.6%, 0%, 43.1%)
CIE-LAB	lab(28.56, 22.27, -49.57)
CIE-LCH	lch(28.56, 54.34, 294.20°)
OKLab	oklab(39.25% -0.0057 -0.1429)
OKLCH	oklch(39.25% 0.143 267.7)
XYZ	xyz(7.4879, 5.6686, 27.4821)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C91 #917A25

analogous

#257291 #253C91 #442591

triadic

#253C91 #91253C #3C9125

tetradic

#253C91 #912572 #917A25 #259144

square

#253C91 #912572 #917A25 #259144

split-complementary

#253C91 #914425 #729125

monochromatic

#0C142F #192860 #253C91 #3150C2 #5B75D5

Accessibility & contrast

On white

9.84

#253C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#253C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C91

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C91	#FFFFFF	#000000	##FFFFFF
##253C91	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003F8F

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253c91;
/* rgb */ color: rgb(37, 60, 145);
/* oklch */ color: oklch(39.3% 0.143 267.7);

Tailwind

colors: {
  custom: {
    50: '#6f71b2',
    500: '#253c91',
    950: '#000000',
  },
}

SCSS

$custom: #253c91;
$custom-light: #6f71b2;
$custom-dark: #000000;

JSON

{
  "hex": "#253c91",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 145
  },
  "hsl": {
    "h": 227.222,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39252,
    "c": 0.14305,
    "h": 267.7
  },
  "luminance": 0.05669
}

Semantic roles & 50–950 ramp

primary

#253C91

secondary

#BAA558

accent

#C145E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #253C91

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

Preview Lab → · Contrast checker → · Palette generator →