#18457C#18457C

#18457C is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 39.1% C 0.105 H 255.5°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#18457C
RGB	rgb(24, 69, 124)
HSL	hsl(213, 68%, 29%)
HSV	hsv(213, 81%, 49%)
CMYK	cmyk(80.6%, 44.4%, 0%, 51.4%)
CIE-LAB	lab(29.17, 5.94, -35.58)
CIE-LCH	lch(29.17, 36.07, 279.47°)
OKLab	oklab(39.09% -0.0264 -0.1019)
OKLCH	oklch(39.09% 0.105 255.5)
XYZ	xyz(6.1416, 5.9049, 19.8810)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18457C #7C4F18

analogous

#18777C #18457C #1D187C

triadic

#18457C #7C1845 #457C18

tetradic

#18457C #7C1877 #7C4F18 #187C1D

square

#18457C #7C1877 #7C4F18 #187C1D

split-complementary

#18457C #7C1D18 #777C18

monochromatic

#050E1A #0E2849 #18457C #2262AF #367FD8

Accessibility & contrast

On white

9.63

#18457C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#18457C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18457C

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18457C	#FFFFFF	#000000	##FFFFFF
##18457C	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4A7E

Deuteranopia (green-blind)

#17417B

Tritanopia (blue-blind)

#00525A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #18457c;
/* rgb */ color: rgb(24, 69, 124);
/* oklch */ color: oklch(39.1% 0.105 255.5);

Tailwind

colors: {
  custom: {
    50: '#6578a2',
    500: '#18457c',
    950: '#000000',
  },
}

SCSS

$custom: #18457c;
$custom-light: #6578a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18457c",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 124
  },
  "hsl": {
    "h": 213,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3909,
    "c": 0.10523,
    "h": 255.5
  },
  "luminance": 0.05906
}

Semantic roles & 50–950 ramp

primary

#18457C

secondary

#B17E3F

accent

#9D3DEA

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #18457C

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

Preview Lab → · Contrast checker → · Palette generator →