#253D64#253D64

#253D64 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.1% C 0.074 H 259.7°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#253D64
RGB	rgb(37, 61, 100)
HSL	hsl(217, 46%, 27%)
HSV	hsv(217, 63%, 39%)
CMYK	cmyk(63%, 39%, 0%, 60.8%)
CIE-LAB	lab(25.71, 4.12, -25.80)
CIE-LCH	lch(25.71, 26.13, 279.07°)
OKLab	oklab(36.08% -0.0133 -0.0731)
OKLCH	oklch(36.08% 0.074 259.7)
XYZ	xyz(4.7311, 4.6505, 12.7024)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D64 #644C25

analogous

#255D64 #253D64 #2D2564

triadic

#253D64 #64253D #3D6425

tetradic

#253D64 #64255D #644C25 #25642D

square

#253D64 #64255D #644C25 #25642D

split-complementary

#253D64 #642D25 #5D6425

monochromatic

#080E16 #142237 #253D64 #365891 #4874BB

Accessibility & contrast

On white

10.88

#253D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#253D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D64

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D64	#FFFFFF	#000000	##FFFFFF
##253D64	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4066

Deuteranopia (green-blind)

#243A63

Tritanopia (blue-blind)

#00464B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253d64;
/* rgb */ color: rgb(37, 61, 100);
/* oklch */ color: oklch(36.1% 0.074 259.7);

Tailwind

colors: {
  custom: {
    50: '#667290',
    500: '#253d64',
    950: '#000000',
  },
}

SCSS

$custom: #253d64;
$custom-light: #667290;
$custom-dark: #000000;

JSON

{
  "hex": "#253d64",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 217.143,
    "s": 45.985,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36078,
    "c": 0.07431,
    "h": 259.7
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#253D64

secondary

#977B4E

accent

#A452D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #253D64

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

Preview Lab → · Contrast checker → · Palette generator →