#25399B#25399B

#25399B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.161 H 268.8°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#25399B
RGB	rgb(37, 57, 155)
HSL	hsl(230, 61%, 38%)
HSV	hsv(230, 76%, 61%)
CMYK	cmyk(76.1%, 63.2%, 0%, 39.2%)
CIE-LAB	lab(28.60, 28.14, -55.61)
CIE-LCH	lch(28.60, 62.33, 296.84°)
OKLab	oklab(39.55% -0.0034 -0.1607)
OKLCH	oklch(39.55% 0.161 268.8)
XYZ	xyz(8.1404, 5.6852, 31.6723)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25399B #9B8725

analogous

#25749B #25399B #4C259B

triadic

#25399B #9B2539 #399B25

tetradic

#25399B #9B2574 #9B8725 #259B4C

square

#25399B #9B2574 #9B8725 #259B4C

split-complementary

#25399B #9B4C25 #749B25

monochromatic

#0D1538 #19276A #25399B #314BCC #6175D9

Accessibility & contrast

On white

9.83

#25399B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#25399B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25399B

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25399B	#FFFFFF	#000000	##FFFFFF
##25399B	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #25399b;
/* rgb */ color: rgb(37, 57, 155);
/* oklch */ color: oklch(39.5% 0.161 268.8);

Tailwind

colors: {
  custom: {
    50: '#726fb9',
    500: '#25399b',
    950: '#000000',
  },
}

SCSS

$custom: #25399b;
$custom-light: #726fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#25399b",
  "rgb": {
    "r": 37,
    "g": 57,
    "b": 155
  },
  "hsl": {
    "h": 229.831,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39548,
    "c": 0.16077,
    "h": 268.8
  },
  "luminance": 0.05686
}

Semantic roles & 50–950 ramp

primary

#25399B

secondary

#BFAE5D

accent

#C943E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #25399B

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

Preview Lab → · Contrast checker → · Palette generator →