#1B1875#1B1875

#1B1875 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.151 H 273.4°. Best body text is #FFFFFF at 14.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B1875
RGB	rgb(27, 24, 117)
HSL	hsl(242, 66%, 28%)
HSV	hsv(242, 79%, 46%)
CMYK	cmyk(76.9%, 79.5%, 0%, 54.1%)
CIE-LAB	lab(16.36, 34.28, -51.98)
CIE-LCH	lch(16.36, 62.27, 303.41°)
OKLab	oklab(29.37% 0.009 -0.1504)
OKLCH	oklch(29.37% 0.151 273.4)
XYZ	xyz(3.9884, 2.1702, 17.0349)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1875 #727518

analogous

#184475 #1B1875 #491875

triadic

#1B1875 #751B18 #18751B

tetradic

#1B1875 #751844 #727518 #187549

square

#1B1875 #751844 #727518 #187549

split-complementary

#1B1875 #754918 #447518

monochromatic

#060519 #0F0E42 #1B1875 #2722A8 #3832D5

Accessibility & contrast

On white

14.64

#1B1875 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B1875 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1875

14.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1875	#FFFFFF	#000000	##FFFFFF
##1B1875	1.00	14.64	1.43	14.64
#FFFFFF	14.64	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D78

Deuteranopia (green-blind)

#002473

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b1875;
/* rgb */ color: rgb(27, 24, 117);
/* oklch */ color: oklch(29.4% 0.151 273.4);

Tailwind

colors: {
  custom: {
    50: '#68579e',
    500: '#1b1875',
    950: '#000000',
  },
}

SCSS

$custom: #1b1875;
$custom-light: #68579e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1875",
  "rgb": {
    "r": 27,
    "g": 24,
    "b": 117
  },
  "hsl": {
    "h": 241.935,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29371,
    "c": 0.15067,
    "h": 273.4
  },
  "luminance": 0.02171
}

Semantic roles & 50–950 ramp

primary

#1B1875

secondary

#A7AA3F

accent

#E93FE3

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1B1875

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

Preview Lab → · Contrast checker → · Palette generator →