#253D6B#253D6B

#253D6B is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.5% C 0.085 H 262.2°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX#253D6B
RGBrgb(37, 61, 107)
HSLhsl(219, 49%, 28%)
HSVhsv(219, 65%, 42%)
CMYKcmyk(65.4%, 43%, 0%, 58%)
CIE-LABlab(26.13, 6.79, -29.64)
CIE-LCHlch(26.13, 30.41, 282.90°)
OKLaboklab(36.54% -0.0115 -0.0843)
OKLCHoklch(36.54% 0.085 262.2)
XYZxyz(5.0846, 4.7919, 14.5640)
Luminance0.0479 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#253D6B #6B5325
analogous
#25606B #253D6B #30256B
triadic
#253D6B #6B253D #3D6B25
tetradic
#253D6B #6B2560 #6B5325 #256B30
square
#253D6B #6B2560 #6B5325 #256B30
split-complementary
#253D6B #6B3025 #606B25
monochromatic
#080D17 #15233E #253D6B #355798 #4A73C0

Accessibility & contrast

On white

10.72
#253D6B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#253D6B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D6B
10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##253D6B#FFFFFF#000000##FFFFFF
##253D6B1.0010.721.9610.72
#FFFFFF10.721.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#29416D
Deuteranopia (green-blind)
#1F3B6A
Tritanopia (blue-blind)
#00474E
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #253d6b;
/* rgb */ color: rgb(37, 61, 107);
/* oklch */ color: oklch(36.5% 0.085 262.2);
Tailwind
colors: {
  custom: {
    50: '#677295',
    500: '#253d6b',
    950: '#000000',
  },
}
SCSS
$custom: #253d6b;
$custom-light: #677295;
$custom-dark: #000000;
JSON
{
  "hex": "#253d6b",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 107
  },
  "hsl": {
    "h": 219.429,
    "s": 48.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36539,
    "c": 0.08513,
    "h": 262.2
  },
  "luminance": 0.04792
}

Semantic roles & 50–950 ramp

primary
#253D6B
secondary
#9E834E
accent
#A950D8
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070D
muted
#7A7A7E

Preview Lab

Preview with #253D6B

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

Preview Lab → · Contrast checker → · Palette generator →

#253D6B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva