#253AA5#253AA5

#253AA5 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.7% C 0.173 H 268.5°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#253AA5
RGB	rgb(37, 58, 165)
HSL	hsl(230, 63%, 40%)
HSV	hsv(230, 78%, 65%)
CMYK	cmyk(77.6%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(29.75, 31.25, -59.79)
CIE-LCH	lch(29.75, 67.47, 297.59°)
OKLab	oklab(40.67% -0.0044 -0.173)
OKLCH	oklch(40.67% 0.173 268.5)
XYZ	xyz(9.0652, 6.1350, 36.2964)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253AA5 #A59025

analogous

#257AA5 #253AA5 #5025A5

triadic

#253AA5 #A5253A #3AA525

tetradic

#253AA5 #A5257A #A59025 #25A550

square

#253AA5 #A5257A #A59025 #25A550

split-complementary

#253AA5 #A55025 #7AA525

monochromatic

#0F1741 #1A2873 #253AA5 #354FD2 #677BDD

Accessibility & contrast

On white

9.43

#253AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#253AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253AA5

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253AA5	#FFFFFF	#000000	##FFFFFF
##253AA5	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253aa5;
/* rgb */ color: rgb(37, 58, 165);
/* oklch */ color: oklch(40.7% 0.173 268.5);

Tailwind

colors: {
  custom: {
    50: '#7570c1',
    500: '#253aa5',
    950: '#000000',
  },
}

SCSS

$custom: #253aa5;
$custom-light: #7570c1;
$custom-dark: #000000;

JSON

{
  "hex": "#253aa5",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 230.156,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40668,
    "c": 0.17303,
    "h": 268.5
  },
  "luminance": 0.06136
}

Semantic roles & 50–950 ramp

primary

#253AA5

secondary

#C3B363

accent

#CB41E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #253AA5

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

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