#18457D#18457D

#18457D is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 39.2% C 0.107 H 255.8°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#18457D
RGB	rgb(24, 69, 125)
HSL	hsl(213, 68%, 29%)
HSV	hsv(213, 81%, 49%)
CMYK	cmyk(80.8%, 44.8%, 0%, 51%)
CIE-LAB	lab(29.24, 6.35, -36.10)
CIE-LCH	lch(29.24, 36.66, 279.97°)
OKLab	oklab(39.16% -0.0262 -0.1034)
OKLCH	oklch(39.16% 0.107 255.8)
XYZ	xyz(6.2051, 5.9304, 20.2157)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18457D #7D5018

analogous

#18787D #18457D #1D187D

triadic

#18457D #7D1845 #457D18

tetradic

#18457D #7D1878 #7D5018 #187D1D

square

#18457D #7D1878 #7D5018 #187D1D

split-complementary

#18457D #7D1D18 #787D18

monochromatic

#050E1A #0E294A #18457D #2261B0 #377FD9

Accessibility & contrast

On white

9.61

#18457D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#18457D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18457D

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18457D	#FFFFFF	#000000	##FFFFFF
##18457D	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294A7F

Deuteranopia (green-blind)

#16417C

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #18457d;
/* rgb */ color: rgb(24, 69, 125);
/* oklch */ color: oklch(39.2% 0.107 255.8);

Tailwind

colors: {
  custom: {
    50: '#6678a3',
    500: '#18457d',
    950: '#000000',
  },
}

SCSS

$custom: #18457d;
$custom-light: #6678a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18457d",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 125
  },
  "hsl": {
    "h": 213.267,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.39161,
    "c": 0.10666,
    "h": 255.8
  },
  "luminance": 0.05931
}

Semantic roles & 50–950 ramp

primary

#18457D

secondary

#B27F3F

accent

#9D3DEB

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #18457D

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

Preview Lab → · Contrast checker → · Palette generator →