#25478B#25478B

#25478B is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.2% C 0.120 H 262.4°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#25478B
RGB	rgb(37, 71, 139)
HSL	hsl(220, 58%, 35%)
HSV	hsv(220, 73%, 55%)
CMYK	cmyk(73.4%, 48.9%, 0%, 45.5%)
CIE-LAB	lab(31.26, 12.40, -41.51)
CIE-LCH	lch(31.26, 43.32, 286.63°)
OKLab	oklab(41.16% -0.0158 -0.119)
OKLCH	oklch(41.16% 0.12 262.4)
XYZ	xyz(7.6747, 6.7631, 25.3220)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25478B #8B6925

analogous

#257A8B #25478B #36258B

triadic

#25478B #8B2547 #478B25

tetradic

#25478B #8B257A #8B6925 #258B36

square

#25478B #8B257A #8B6925 #258B36

split-complementary

#25478B #8B3625 #7A8B25

monochromatic

#0B162A #182E5B #25478B #3260BB #5881D3

Accessibility & contrast

On white

8.93

#25478B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#25478B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25478B

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25478B	#FFFFFF	#000000	##FFFFFF
##25478B	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)

#224F8E

Deuteranopia (green-blind)

#07458A

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #25478b;
/* rgb */ color: rgb(37, 71, 139);
/* oklch */ color: oklch(41.2% 0.120 262.4);

Tailwind

colors: {
  custom: {
    50: '#6d79ad',
    500: '#25478b',
    950: '#000000',
  },
}

SCSS

$custom: #25478b;
$custom-light: #6d79ad;
$custom-dark: #000000;

JSON

{
  "hex": "#25478b",
  "rgb": {
    "r": 37,
    "g": 71,
    "b": 139
  },
  "hsl": {
    "h": 220,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.41158,
    "c": 0.1201,
    "h": 262.4
  },
  "luminance": 0.06764
}

Semantic roles & 50–950 ramp

primary

#25478B

secondary

#B79655

accent

#AE47E1

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #25478B

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

Preview Lab → · Contrast checker → · Palette generator →