#253B64#253B64

#253B64 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.077 H 261.9°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#253B64
RGB	rgb(37, 59, 100)
HSL	hsl(219, 46%, 27%)
HSV	hsv(219, 63%, 39%)
CMYK	cmyk(63%, 41%, 0%, 60.8%)
CIE-LAB	lab(25.08, 5.50, -26.81)
CIE-LCH	lch(25.08, 27.37, 281.58°)
OKLab	oklab(35.58% -0.0108 -0.0761)
OKLCH	oklch(35.58% 0.077 261.9)
XYZ	xyz(4.6264, 4.4410, 12.6675)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B64 #644E25

analogous

#255B64 #253B64 #2F2564

triadic

#253B64 #64253B #3B6425

tetradic

#253B64 #64255B #644E25 #25642F

square

#253B64 #64255B #644E25 #25642F

split-complementary

#253B64 #642F25 #5B6425

monochromatic

#080D16 #142137 #253B64 #365591 #4870BB

Accessibility & contrast

On white

11.12

#253B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#253B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B64

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B64	#FFFFFF	#000000	##FFFFFF
##253B64	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3F66

Deuteranopia (green-blind)

#213963

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #253b64;
/* rgb */ color: rgb(37, 59, 100);
/* oklch */ color: oklch(35.6% 0.077 261.9);

Tailwind

colors: {
  custom: {
    50: '#667090',
    500: '#253b64',
    950: '#000000',
  },
}

SCSS

$custom: #253b64;
$custom-light: #667090;
$custom-dark: #000000;

JSON

{
  "hex": "#253b64",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 100
  },
  "hsl": {
    "h": 219.048,
    "s": 45.985,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35584,
    "c": 0.07685,
    "h": 261.9
  },
  "luminance": 0.04441
}

Semantic roles & 50–950 ramp

primary

#253B64

secondary

#977E4E

accent

#A852D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #253B64

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

Preview Lab → · Contrast checker → · Palette generator →