#1A158D#1A158D

#1A158D is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.183 H 270.9°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#1A158D
RGB	rgb(26, 21, 141)
HSL	hsl(243, 74%, 32%)
HSV	hsv(243, 85%, 55%)
CMYK	cmyk(81.6%, 85.1%, 0%, 44.7%)
CIE-LAB	lab(18.71, 43.80, -63.31)
CIE-LCH	lch(18.71, 76.99, 304.68°)
OKLab	oklab(31.85% 0.003 -0.1832)
OKLCH	oklch(31.85% 0.183 270.9)
XYZ	xyz(5.5003, 2.6784, 25.4212)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A158D #888D15

analogous

#154C8D #1A158D #56158D

triadic

#1A158D #8D1A15 #158D1A

tetradic

#1A158D #8D154C #888D15 #158D56

square

#1A158D #8D154C #888D15 #158D56

split-complementary

#1A158D #8D5615 #4C8D15

monochromatic

#060522 #100D58 #1A158D #241DC2 #423BE2

Accessibility & contrast

On white

13.67

#1A158D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1A158D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A158D

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A158D	#FFFFFF	#000000	##FFFFFF
##1A158D	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003390

Deuteranopia (green-blind)

#00278B

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1a158d;
/* rgb */ color: rgb(26, 21, 141);
/* oklch */ color: oklch(31.9% 0.183 270.9);

Tailwind

colors: {
  custom: {
    50: '#6e57b0',
    500: '#1a158d',
    950: '#000000',
  },
}

SCSS

$custom: #1a158d;
$custom-light: #6e57b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a158d",
  "rgb": {
    "r": 26,
    "g": 21,
    "b": 141
  },
  "hsl": {
    "h": 242.5,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3185,
    "c": 0.18324,
    "h": 270.9
  },
  "luminance": 0.02679
}

Semantic roles & 50–950 ramp

primary

#1A158D

secondary

#BBC13D

accent

#F137E9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A158D

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

Preview Lab → · Contrast checker → · Palette generator →