#253DBC#253DBC

#253DBC is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.199 H 267.9°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#253DBC
RGB	rgb(37, 61, 188)
HSL	hsl(230, 67%, 44%)
HSV	hsv(230, 80%, 74%)
CMYK	cmyk(80.3%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(32.61, 37.80, -68.80)
CIE-LCH	lch(32.61, 78.50, 298.78°)
OKLab	oklab(43.41% -0.0073 -0.1993)
OKLCH	oklch(43.41% 0.199 267.9)
XYZ	xyz(11.5056, 7.3603, 48.3815)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253DBC #BCA425

analogous

#2588BC #253DBC #5925BC

triadic

#253DBC #BC253D #3DBC25

tetradic

#253DBC #BC2588 #BCA425 #25BC59

square

#253DBC #BC2588 #BCA425 #25BC59

split-complementary

#253DBC #BC5925 #88BC25

monochromatic

#111C56 #1B2C89 #253DBC #445CDA #7788E4

Accessibility & contrast

On white

8.49

#253DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#253DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253DBC

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253DBC	#FFFFFF	#000000	##FFFFFF
##253DBC	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #253dbc;
/* rgb */ color: rgb(37, 61, 188);
/* oklch */ color: oklch(43.4% 0.199 267.9);

Tailwind

colors: {
  custom: {
    50: '#7a72d1',
    500: '#253dbc',
    950: '#000000',
  },
}

SCSS

$custom: #253dbc;
$custom-light: #7a72d1;
$custom-dark: #000000;

JSON

{
  "hex": "#253dbc",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 230.464,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43414,
    "c": 0.1994,
    "h": 267.9
  },
  "luminance": 0.07362
}

Semantic roles & 50–950 ramp

primary

#253DBC

secondary

#CCBD71

accent

#CF3EEA

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #253DBC

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

Preview Lab → · Contrast checker → · Palette generator →