#253B68#253B68

#253B68 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.083 H 263.2°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#253B68
RGB	rgb(37, 59, 104)
HSL	hsl(220, 48%, 28%)
HSV	hsv(220, 64%, 41%)
CMYK	cmyk(64.4%, 43.3%, 0%, 59.2%)
CIE-LAB	lab(25.32, 7.02, -29.00)
CIE-LCH	lch(25.32, 29.84, 283.61°)
OKLab	oklab(35.85% -0.0099 -0.0825)
OKLCH	oklch(35.85% 0.083 263.2)
XYZ	xyz(4.8247, 4.5203, 13.7123)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B68 #685225

analogous

#255C68 #253B68 #312568

triadic

#253B68 #68253B #3B6825

tetradic

#253B68 #68255C #685225 #256831

square

#253B68 #68255C #685225 #256831

split-complementary

#253B68 #683125 #5C6825

monochromatic

#080D17 #15213B #253B68 #355595 #4970BE

Accessibility & contrast

On white

11.03

#253B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#253B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B68

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B68	#FFFFFF	#000000	##FFFFFF
##253B68	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273F6A

Deuteranopia (green-blind)

#1E3967

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #253b68;
/* rgb */ color: rgb(37, 59, 104);
/* oklch */ color: oklch(35.9% 0.083 263.2);

Tailwind

colors: {
  custom: {
    50: '#667093',
    500: '#253b68',
    950: '#000000',
  },
}

SCSS

$custom: #253b68;
$custom-light: #667093;
$custom-dark: #000000;

JSON

{
  "hex": "#253b68",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 104
  },
  "hsl": {
    "h": 220.299,
    "s": 47.518,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35852,
    "c": 0.08309,
    "h": 263.2
  },
  "luminance": 0.04521
}

Semantic roles & 50–950 ramp

primary

#253B68

secondary

#9B824E

accent

#AB51D7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253B68

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

Preview Lab → · Contrast checker → · Palette generator →