#183A95#183A95

#183A95 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.155 H 264.5°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#183A95
RGB	rgb(24, 58, 149)
HSL	hsl(224, 72%, 34%)
HSV	hsv(224, 84%, 58%)
CMYK	cmyk(83.9%, 61.1%, 0%, 41.6%)
CIE-LAB	lab(27.82, 23.79, -53.26)
CIE-LCH	lch(27.82, 58.33, 294.07°)
OKLab	oklab(38.65% -0.0149 -0.154)
OKLCH	oklch(38.65% 0.155 264.5)
XYZ	xyz(7.3126, 5.3893, 29.0828)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A95 #957318

analogous

#187995 #183A95 #351895

triadic

#183A95 #95183A #3A9518

tetradic

#183A95 #951879 #957318 #189535

square

#183A95 #951879 #957318 #189535

split-complementary

#183A95 #953518 #799518

monochromatic

#07112C #102560 #183A95 #204FCA #4670E1

Accessibility & contrast

On white

10.11

#183A95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#183A95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A95

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A95	#FFFFFF	#000000	##FFFFFF
##183A95	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004898

Deuteranopia (green-blind)

#003C93

Tritanopia (blue-blind)

#005161

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #183a95;
/* rgb */ color: rgb(24, 58, 149);
/* oklch */ color: oklch(38.7% 0.155 264.5);

Tailwind

colors: {
  custom: {
    50: '#6d6fb5',
    500: '#183a95',
    950: '#000000',
  },
}

SCSS

$custom: #183a95;
$custom-light: #6d6fb5;
$custom-dark: #000000;

JSON

{
  "hex": "#183a95",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 149
  },
  "hsl": {
    "h": 223.68,
    "s": 72.254,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38653,
    "c": 0.15477,
    "h": 264.5
  },
  "luminance": 0.0539
}

Semantic roles & 50–950 ramp

primary

#183A95

secondary

#C2A146

accent

#BD39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183A95

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

Preview Lab → · Contrast checker → · Palette generator →