#25577B#25577B

#25577B is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.0% C 0.080 H 242.9°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#25577B
RGB	rgb(37, 87, 123)
HSL	hsl(205, 54%, 31%)
HSV	hsv(205, 70%, 48%)
CMYK	cmyk(69.9%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.28, -4.26, -25.27)
CIE-LCH	lch(35.28, 25.62, 260.42°)
OKLab	oklab(43.99% -0.0365 -0.0713)
OKLCH	oklch(43.99% 0.08 242.9)
XYZ	xyz(7.7449, 8.6389, 19.9944)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25577B #7B4925

analogous

#257B74 #25577B #252C7B

triadic

#25577B #7B2557 #577B25

tetradic

#25577B #74257B #7B4925 #2C7B25

square

#25577B #74257B #7B4925 #2C7B25

split-complementary

#25577B #7B252C #7B7425

monochromatic

#09141D #17364C #25577B #3378AA #5097CA

Accessibility & contrast

On white

7.70

#25577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#25577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25577B

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25577B	#FFFFFF	#000000	##FFFFFF
##25577B	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587D

Deuteranopia (green-blind)

#3B4F7A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #25577b;
/* rgb */ color: rgb(37, 87, 123);
/* oklch */ color: oklch(44.0% 0.080 242.9);

Tailwind

colors: {
  custom: {
    50: '#6a86a1',
    500: '#25577b',
    950: '#000000',
  },
}

SCSS

$custom: #25577b;
$custom-light: #6a86a1;
$custom-dark: #000000;

JSON

{
  "hex": "#25577b",
  "rgb": {
    "r": 37,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 205.116,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.43985,
    "c": 0.08005,
    "h": 242.9
  },
  "luminance": 0.0864
}

Semantic roles & 50–950 ramp

primary

#25577B

secondary

#AD764F

accent

#884BDD

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #25577B

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

Preview Lab → · Contrast checker → · Palette generator →