#1A158C#1A158C

#1A158C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.7% C 0.182 H 271.0°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#1A158C
RGB	rgb(26, 21, 140)
HSL	hsl(243, 74%, 32%)
HSV	hsv(243, 85%, 55%)
CMYK	cmyk(81.4%, 85%, 0%, 45.1%)
CIE-LAB	lab(18.58, 43.48, -62.90)
CIE-LCH	lch(18.58, 76.47, 304.65°)
OKLab	oklab(31.72% 0.0032 -0.182)
OKLCH	oklch(31.72% 0.182 271)
XYZ	xyz(5.4262, 2.6488, 25.0311)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A158C #878C15

analogous

#154C8C #1A158C #56158C

triadic

#1A158C #8C1A15 #158C1A

tetradic

#1A158C #8C154C #878C15 #158C56

square

#1A158C #8C154C #878C15 #158C56

split-complementary

#1A158C #8C5615 #4C8C15

monochromatic

#060522 #100D57 #1A158C #241DC1 #413AE1

Accessibility & contrast

On white

13.73

#1A158C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1A158C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A158C

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A158C	#FFFFFF	#000000	##FFFFFF
##1A158C	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a158c;
/* rgb */ color: rgb(26, 21, 140);
/* oklch */ color: oklch(31.7% 0.182 271.0);

Tailwind

colors: {
  custom: {
    50: '#6e57af',
    500: '#1a158c',
    950: '#000000',
  },
}

SCSS

$custom: #1a158c;
$custom-light: #6e57af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a158c",
  "rgb": {
    "r": 26,
    "g": 21,
    "b": 140
  },
  "hsl": {
    "h": 242.521,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31724,
    "c": 0.18206,
    "h": 271
  },
  "luminance": 0.02649
}

Semantic roles & 50–950 ramp

primary

#1A158C

secondary

#BAC03D

accent

#F137E9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A158C

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

Preview Lab → · Contrast checker → · Palette generator →