#23578B#23578B

#23578B is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.9% C 0.102 H 251.2°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#23578B
RGB	rgb(35, 87, 139)
HSL	hsl(210, 60%, 34%)
HSV	hsv(210, 75%, 55%)
CMYK	cmyk(74.8%, 37.4%, 0%, 45.5%)
CIE-LAB	lab(36.06, 1.48, -33.86)
CIE-LCH	lch(36.06, 33.89, 272.50°)
OKLab	oklab(44.85% -0.0329 -0.0963)
OKLCH	oklch(44.85% 0.102 251.2)
XYZ	xyz(8.7598, 9.0368, 25.7037)
Luminance	0.0904 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23578B #8B5723

analogous

#238B8B #23578B #23238B

triadic

#23578B #8B2357 #578B23

tetradic

#23578B #8B238B #8B5723 #238B23

square

#23578B #8B238B #8B5723 #238B23

split-complementary

#23578B #8B2323 #8B8B23

monochromatic

#0A1A29 #17385A #23578B #2F76BC #5494D4

Accessibility & contrast

On white

7.48

#23578B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#23578B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23578B

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23578B	#FFFFFF	#000000	##FFFFFF
##23578B	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5A8D

Deuteranopia (green-blind)

#30508A

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #23578b;
/* rgb */ color: rgb(35, 87, 139);
/* oklch */ color: oklch(44.9% 0.102 251.2);

Tailwind

colors: {
  custom: {
    50: '#6c86ad',
    500: '#23578b',
    950: '#000000',
  },
}

SCSS

$custom: #23578b;
$custom-light: #6c86ad;
$custom-dark: #000000;

JSON

{
  "hex": "#23578b",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 139
  },
  "hsl": {
    "h": 210,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44853,
    "c": 0.10178,
    "h": 251.2
  },
  "luminance": 0.09038
}

Semantic roles & 50–950 ramp

primary

#23578B

secondary

#B88552

accent

#9445E3

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #23578B

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

Preview Lab → · Contrast checker → · Palette generator →