#183975#183975

#183975 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.110 H 261.2°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#183975
RGB	rgb(24, 57, 117)
HSL	hsl(219, 66%, 28%)
HSV	hsv(219, 79%, 46%)
CMYK	cmyk(79.5%, 51.3%, 0%, 54.1%)
CIE-LAB	lab(24.97, 11.39, -37.92)
CIE-LCH	lch(24.97, 39.60, 286.72°)
OKLab	oklab(35.69% -0.0169 -0.109)
OKLCH	oklch(35.69% 0.11 261.2)
XYZ	xyz(5.0495, 4.4042, 17.4101)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183975 #755418

analogous

#186775 #183975 #261875

triadic

#183975 #751839 #397518

tetradic

#183975 #751867 #755418 #187526

square

#183975 #751867 #755418 #187526

split-complementary

#183975 #752618 #677518

monochromatic

#050C19 #0E2042 #183975 #2252A8 #326CD5

Accessibility & contrast

On white

11.16

#183975 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#183975 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183975

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183975	#FFFFFF	#000000	##FFFFFF
##183975	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164077

Deuteranopia (green-blind)

#003774

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183975;
/* rgb */ color: rgb(24, 57, 117);
/* oklch */ color: oklch(35.7% 0.110 261.2);

Tailwind

colors: {
  custom: {
    50: '#646e9d',
    500: '#183975',
    950: '#000000',
  },
}

SCSS

$custom: #183975;
$custom-light: #646e9d;
$custom-dark: #000000;

JSON

{
  "hex": "#183975",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 117
  },
  "hsl": {
    "h": 218.71,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35691,
    "c": 0.11031,
    "h": 261.2
  },
  "luminance": 0.04405
}

Semantic roles & 50–950 ramp

primary

#183975

secondary

#AA843F

accent

#AD3FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183975

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

Preview Lab → · Contrast checker → · Palette generator →