#25404B#25404B

#25404B is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.038 H 225.9°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#25404B
RGB	rgb(37, 64, 75)
HSL	hsl(197, 34%, 22%)
HSV	hsv(197, 51%, 29%)
CMYK	cmyk(50.7%, 14.7%, 0%, 70.6%)
CIE-LAB	lab(25.47, -6.78, -9.88)
CIE-LCH	lch(25.47, 11.98, 235.53°)
OKLab	oklab(35.47% -0.0264 -0.0273)
OKLCH	oklch(35.47% 0.038 225.9)
XYZ	xyz(3.8659, 4.5678, 7.3332)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25404B #4B3025

analogous

#254B43 #25404B #252D4B

triadic

#25404B #4B2540 #404B25

tetradic

#25404B #43254B #4B3025 #2D4B25

square

#25404B #43254B #4B3025 #2D4B25

split-complementary

#25404B #4B252D #4B4325

monochromatic

#0A1114 #111D22 #25404B #396374 #4D869D

Accessibility & contrast

On white

10.97

#25404B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#25404B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25404B

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25404B	#FFFFFF	#000000	##FFFFFF
##25404B	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3F4C

Deuteranopia (green-blind)

#343A4B

Tritanopia (blue-blind)

#134343

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #25404b;
/* rgb */ color: rgb(37, 64, 75);
/* oklch */ color: oklch(35.5% 0.038 225.9);

Tailwind

colors: {
  custom: {
    50: '#62747d',
    500: '#25404b',
    950: '#000000',
  },
}

SCSS

$custom: #25404b;
$custom-light: #62747d;
$custom-dark: #000000;

JSON

{
  "hex": "#25404b",
  "rgb": {
    "r": 37,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 197.368,
    "s": 33.929,
    "l": 21.961
  },
  "oklch": {
    "l": 0.35474,
    "c": 0.038,
    "h": 225.9
  },
  "luminance": 0.04568
}

Semantic roles & 50–950 ramp

primary

#25404B

secondary

#7E5C4E

accent

#7D5ECA

background

#F5F7F7

surface

#EAEDEE

border

#C6C8C9

text

#050809

muted

#797B7B

Preview Lab

Preview with #25404B

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

Preview Lab → · Contrast checker → · Palette generator →