#253F70#253F70

#253F70 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.090 H 261.9°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#253F70
RGB	rgb(37, 63, 112)
HSL	hsl(219, 50%, 29%)
HSV	hsv(219, 67%, 44%)
CMYK	cmyk(67%, 43.7%, 0%, 56.1%)
CIE-LAB	lab(27.07, 7.34, -31.34)
CIE-LCH	lch(27.07, 32.19, 283.18°)
OKLab	oklab(37.36% -0.0127 -0.0893)
OKLCH	oklch(37.36% 0.09 261.9)
XYZ	xyz(5.4641, 5.1177, 16.0259)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F70 #705625

analogous

#256570 #253F70 #312570

triadic

#253F70 #70253F #3F7025

tetradic

#253F70 #702565 #705625 #257031

square

#253F70 #702565 #705625 #257031

split-complementary

#253F70 #703125 #657025

monochromatic

#080D17 #162542 #253F70 #34599E #4C75C4

Accessibility & contrast

On white

10.38

#253F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#253F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F70

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F70	#FFFFFF	#000000	##FFFFFF
##253F70	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294472

Deuteranopia (green-blind)

#1E3D6F

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253f70;
/* rgb */ color: rgb(37, 63, 112);
/* oklch */ color: oklch(37.4% 0.090 261.9);

Tailwind

colors: {
  custom: {
    50: '#687399',
    500: '#253f70',
    950: '#000000',
  },
}

SCSS

$custom: #253f70;
$custom-light: #687399;
$custom-dark: #000000;

JSON

{
  "hex": "#253f70",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 112
  },
  "hsl": {
    "h": 219.2,
    "s": 50.336,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37361,
    "c": 0.09021,
    "h": 261.9
  },
  "luminance": 0.05118
}

Semantic roles & 50–950 ramp

primary

#253F70

secondary

#A3854E

accent

#A94EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253F70

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

Preview Lab → · Contrast checker → · Palette generator →