#1D148C#1D148C

#1D148C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.182 H 272.3°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#1D148C
RGB	rgb(29, 20, 140)
HSL	hsl(245, 75%, 31%)
HSV	hsv(245, 86%, 55%)
CMYK	cmyk(79.3%, 85.7%, 0%, 45.1%)
CIE-LAB	lab(18.60, 44.11, -62.86)
CIE-LCH	lch(18.60, 76.79, 305.06°)
OKLab	oklab(31.79% 0.0072 -0.1818)
OKLCH	oklch(31.79% 0.182 272.3)
XYZ	xyz(5.4889, 2.6544, 25.0289)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D148C #838C14

analogous

#14478C #1D148C #59148C

triadic

#1D148C #8C1D14 #148C1D

tetradic

#1D148C #8C1447 #838C14 #148C59

square

#1D148C #8C1447 #838C14 #148C59

split-complementary

#1D148C #8C5914 #478C14

monochromatic

#070521 #120C56 #1D148C #281CC2 #4538E3

Accessibility & contrast

On white

13.72

#1D148C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D148C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D148C

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D148C	#FFFFFF	#000000	##FFFFFF
##1D148C	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	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: #1d148c;
/* rgb */ color: rgb(29, 20, 140);
/* oklch */ color: oklch(31.8% 0.182 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f56af',
    500: '#1d148c',
    950: '#000000',
  },
}

SCSS

$custom: #1d148c;
$custom-light: #6f56af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d148c",
  "rgb": {
    "r": 29,
    "g": 20,
    "b": 140
  },
  "hsl": {
    "h": 244.5,
    "s": 75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.3179,
    "c": 0.18196,
    "h": 272.3
  },
  "luminance": 0.02655
}

Semantic roles & 50–950 ramp

primary

#1D148C

secondary

#B6C03C

accent

#F236E4

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D148C

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

Preview Lab → · Contrast checker → · Palette generator →