#252FA5#252FA5

#252FA5 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.8% C 0.186 H 270.5°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#252FA5
RGB	rgb(37, 47, 165)
HSL	hsl(235, 63%, 40%)
HSV	hsv(235, 78%, 65%)
CMYK	cmyk(77.6%, 71.5%, 0%, 35.3%)
CIE-LAB	lab(27.14, 38.27, -64.09)
CIE-LCH	lch(27.14, 74.65, 300.84°)
OKLab	oklab(38.77% 0.0016 -0.1856)
OKLCH	oklch(38.77% 0.186 270.5)
XYZ	xyz(8.5687, 5.1420, 36.1309)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252FA5 #A59B25

analogous

#256FA5 #252FA5 #5B25A5

triadic

#252FA5 #A5252F #2FA525

tetradic

#252FA5 #A5256F #A59B25 #25A55B

square

#252FA5 #A5256F #A59B25 #25A55B

split-complementary

#252FA5 #A55B25 #6FA525

monochromatic

#0F1341 #1A2173 #252FA5 #3542D2 #6771DD

Accessibility & contrast

On white

10.35

#252FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#252FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252FA5

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252FA5	#FFFFFF	#000000	##FFFFFF
##252FA5	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A9

Deuteranopia (green-blind)

#003AA3

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #252fa5;
/* rgb */ color: rgb(37, 47, 165);
/* oklch */ color: oklch(38.8% 0.186 270.5);

Tailwind

colors: {
  custom: {
    50: '#7668c1',
    500: '#252fa5',
    950: '#000000',
  },
}

SCSS

$custom: #252fa5;
$custom-light: #7668c1;
$custom-dark: #000000;

JSON

{
  "hex": "#252fa5",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 165
  },
  "hsl": {
    "h": 235.313,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38765,
    "c": 0.18557,
    "h": 270.5
  },
  "luminance": 0.05143
}

Semantic roles & 50–950 ramp

primary

#252FA5

secondary

#C3BB63

accent

#DA41E6

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #252FA5

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

Preview Lab → · Contrast checker → · Palette generator →