#1D138C#1D138C

#1D138C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.7% C 0.183 H 272.3°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D138C
RGB	rgb(29, 19, 140)
HSL	hsl(245, 76%, 31%)
HSV	hsv(245, 86%, 55%)
CMYK	cmyk(79.3%, 86.4%, 0%, 45.1%)
CIE-LAB	lab(18.45, 44.56, -63.11)
CIE-LCH	lch(18.45, 77.25, 305.23°)
OKLab	oklab(31.69% 0.0074 -0.1825)
OKLCH	oklch(31.69% 0.183 272.3)
XYZ	xyz(5.4716, 2.6198, 25.0232)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D138C #828C13

analogous

#13458C #1D138C #59138C

triadic

#1D138C #8C1D13 #138C1D

tetradic

#1D138C #8C1345 #828C13 #138C59

square

#1D138C #8C1345 #828C13 #138C59

split-complementary

#1D138C #8C5913 #458C13

monochromatic

#070420 #120C56 #1D138C #281AC2 #4436E4

Accessibility & contrast

On white

13.78

#1D138C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D138C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D138C

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D138C	#FFFFFF	#000000	##FFFFFF
##1D138C	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d138c;
/* rgb */ color: rgb(29, 19, 140);
/* oklch */ color: oklch(31.7% 0.183 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f56af',
    500: '#1d138c',
    950: '#000000',
  },
}

SCSS

$custom: #1d138c;
$custom-light: #6f56af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d138c",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 140
  },
  "hsl": {
    "h": 244.959,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31686,
    "c": 0.18268,
    "h": 272.3
  },
  "luminance": 0.0262
}

Semantic roles & 50–950 ramp

primary

#1D138C

secondary

#B5C03B

accent

#F335E3

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D138C

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

Preview Lab → · Contrast checker → · Palette generator →