#1D187A#1D187A

#1D187A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.157 H 273.8°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#1D187A
RGB	rgb(29, 24, 122)
HSL	hsl(243, 67%, 29%)
HSV	hsv(243, 80%, 48%)
CMYK	cmyk(76.2%, 80.3%, 0%, 52.2%)
CIE-LAB	lab(17.08, 36.19, -53.99)
CIE-LCH	lch(17.08, 65.00, 303.84°)
OKLab	oklab(30.09% 0.0105 -0.1562)
OKLCH	oklch(30.09% 0.157 273.8)
XYZ	xyz(4.3450, 2.3192, 18.6272)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D187A #757A18

analogous

#18447A #1D187A #4E187A

triadic

#1D187A #7A1D18 #187A1D

tetradic

#1D187A #7A1844 #757A18 #187A4E

square

#1D187A #7A1844 #757A18 #187A4E

split-complementary

#1D187A #7A4E18 #447A18

monochromatic

#06051A #110E47 #1D187A #2922AD #3D35D7

Accessibility & contrast

On white

14.34

#1D187A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1D187A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D187A

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D187A	#FFFFFF	#000000	##FFFFFF
##1D187A	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7D

Deuteranopia (green-blind)

#002578

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d187a;
/* rgb */ color: rgb(29, 24, 122);
/* oklch */ color: oklch(30.1% 0.157 273.8);

Tailwind

colors: {
  custom: {
    50: '#6a57a2',
    500: '#1d187a',
    950: '#000000',
  },
}

SCSS

$custom: #1d187a;
$custom-light: #6a57a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d187a",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 122
  },
  "hsl": {
    "h": 243.061,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30089,
    "c": 0.15654,
    "h": 273.8
  },
  "luminance": 0.0232
}

Semantic roles & 50–950 ramp

primary

#1D187A

secondary

#A9AF3F

accent

#EA3EE1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1D187A

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

Preview Lab → · Contrast checker → · Palette generator →