#18255E#18255E

#18255E is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.2% C 0.103 H 269.3°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#18255E
RGB	rgb(24, 37, 94)
HSL	hsl(229, 59%, 23%)
HSV	hsv(229, 74%, 37%)
CMYK	cmyk(74.5%, 60.6%, 0%, 63.1%)
CIE-LAB	lab(17.11, 16.31, -35.71)
CIE-LCH	lch(17.11, 39.26, 294.55°)
OKLab	oklab(29.16% -0.0013 -0.1029)
OKLCH	oklch(29.16% 0.103 269.3)
XYZ	xyz(3.0579, 2.3252, 10.8752)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18255E #5E5118

analogous

#18485E #18255E #2E185E

triadic

#18255E #5E1825 #255E18

tetradic

#18255E #5E1848 #5E5118 #185E2E

square

#18255E #5E1848 #5E5118 #185E2E

split-complementary

#18255E #5E2E18 #485E18

monochromatic

#060A18 #0C122D #18255E #24388F #314BC0

Accessibility & contrast

On white

14.33

#18255E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#18255E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18255E

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18255E	#FFFFFF	#000000	##FFFFFF
##18255E	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D60

Deuteranopia (green-blind)

#00275D

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18255e;
/* rgb */ color: rgb(24, 37, 94);
/* oklch */ color: oklch(29.2% 0.103 269.3);

Tailwind

colors: {
  custom: {
    50: '#5f5f8c',
    500: '#18255e',
    950: '#000000',
  },
}

SCSS

$custom: #18255e;
$custom-light: #5f5f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#18255e",
  "rgb": {
    "r": 24,
    "g": 37,
    "b": 94
  },
  "hsl": {
    "h": 228.857,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.29162,
    "c": 0.10287,
    "h": 269.3
  },
  "luminance": 0.02325
}

Semantic roles & 50–950 ramp

primary

#18255E

secondary

#94843D

accent

#C545E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18255E

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

Preview Lab → · Contrast checker → · Palette generator →