#253CB0#253CB0

#253CB0 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.185 H 268.1°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#253CB0
RGB	rgb(37, 60, 176)
HSL	hsl(230, 65%, 42%)
HSV	hsv(230, 79%, 69%)
CMYK	cmyk(79%, 65.9%, 0%, 31%)
CIE-LAB	lab(31.25, 34.04, -63.93)
CIE-LCH	lch(31.25, 72.42, 298.03°)
OKLab	oklab(42.08% -0.006 -0.185)
OKLCH	oklch(42.08% 0.185 268.1)
XYZ	xyz(10.2126, 6.7585, 41.8321)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253CB0 #B09925

analogous

#2582B0 #253CB0 #5425B0

triadic

#253CB0 #B0253C #3CB025

tetradic

#253CB0 #B02582 #B09925 #25B054

square

#253CB0 #B02582 #B09925 #25B054

split-complementary

#253CB0 #B05425 #82B025

monochromatic

#101A4B #1A2B7D #253CB0 #3C56D6 #6F82E1

Accessibility & contrast

On white

8.93

#253CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#253CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253CB0

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253CB0	#FFFFFF	#000000	##FFFFFF
##253CB0	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B4

Deuteranopia (green-blind)

#0043AE

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #253cb0;
/* rgb */ color: rgb(37, 60, 176);
/* oklch */ color: oklch(42.1% 0.185 268.1);

Tailwind

colors: {
  custom: {
    50: '#7771c9',
    500: '#253cb0',
    950: '#000000',
  },
}

SCSS

$custom: #253cb0;
$custom-light: #7771c9;
$custom-dark: #000000;

JSON

{
  "hex": "#253cb0",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 176
  },
  "hsl": {
    "h": 230.072,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42076,
    "c": 0.18514,
    "h": 268.1
  },
  "luminance": 0.0676
}

Semantic roles & 50–950 ramp

primary

#253CB0

secondary

#C7B86A

accent

#CC40E8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #253CB0

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

Preview Lab → · Contrast checker → · Palette generator →