#243A58#243A58

#243A58 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.5% C 0.060 H 256.4°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#243A58
RGB	rgb(36, 58, 88)
HSL	hsl(215, 42%, 24%)
HSV	hsv(215, 59%, 35%)
CMYK	cmyk(59.1%, 34.1%, 0%, 65.5%)
CIE-LAB	lab(24.02, 1.45, -20.67)
CIE-LCH	lch(24.02, 20.72, 274.02°)
OKLab	oklab(34.52% -0.014 -0.0582)
OKLCH	oklch(34.52% 0.06 256.4)
XYZ	xyz(4.0015, 4.1054, 9.8122)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A58 #584224

analogous

#245458 #243A58 #282458

triadic

#243A58 #58243A #3A5824

tetradic

#243A58 #582454 #584224 #245828

square

#243A58 #582454 #584224 #245828

split-complementary

#243A58 #582824 #545824

monochromatic

#090E16 #121D2D #243A58 #365783 #4873AF

Accessibility & contrast

On white

11.53

#243A58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#243A58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A58

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A58	#FFFFFF	#000000	##FFFFFF
##243A58	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3C59

Deuteranopia (green-blind)

#273757

Tritanopia (blue-blind)

#054145

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #243a58;
/* rgb */ color: rgb(36, 58, 88);
/* oklch */ color: oklch(34.5% 0.060 256.4);

Tailwind

colors: {
  custom: {
    50: '#636f87',
    500: '#243a58',
    950: '#000000',
  },
}

SCSS

$custom: #243a58;
$custom-light: #636f87;
$custom-dark: #000000;

JSON

{
  "hex": "#243a58",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 88
  },
  "hsl": {
    "h": 214.615,
    "s": 41.935,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34519,
    "c": 0.05988,
    "h": 256.4
  },
  "luminance": 0.04106
}

Semantic roles & 50–950 ramp

primary

#243A58

secondary

#8C714C

accent

#9D56D2

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #243A58

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

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