#1A187C#1A187C

#1A187C is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.160 H 272.2°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#1A187C
RGB	rgb(26, 24, 124)
HSL	hsl(241, 68%, 29%)
HSV	hsv(241, 81%, 49%)
CMYK	cmyk(79%, 80.6%, 0%, 51.4%)
CIE-LAB	lab(17.12, 36.63, -55.21)
CIE-LCH	lch(17.12, 66.26, 303.56°)
OKLab	oklab(30.14% 0.0061 -0.1598)
OKLCH	oklch(30.14% 0.16 272.2)
XYZ	xyz(4.3895, 2.3276, 19.2828)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A187C #7A7C18

analogous

#18487C #1A187C #4C187C

triadic

#1A187C #7C1A18 #187C1A

tetradic

#1A187C #7C1848 #7A7C18 #187C4C

square

#1A187C #7C1848 #7A7C18 #187C4C

split-complementary

#1A187C #7C4C18 #487C18

monochromatic

#05051A #0F0E49 #1A187C #2522AF #3936D8

Accessibility & contrast

On white

14.33

#1A187C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1A187C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A187C

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A187C	#FFFFFF	#000000	##FFFFFF
##1A187C	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7F

Deuteranopia (green-blind)

#00257A

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1a187c;
/* rgb */ color: rgb(26, 24, 124);
/* oklch */ color: oklch(30.1% 0.160 272.2);

Tailwind

colors: {
  custom: {
    50: '#6a57a3',
    500: '#1a187c',
    950: '#000000',
  },
}

SCSS

$custom: #1a187c;
$custom-light: #6a57a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a187c",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 124
  },
  "hsl": {
    "h": 241.2,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30135,
    "c": 0.15992,
    "h": 272.2
  },
  "luminance": 0.02328
}

Semantic roles & 50–950 ramp

primary

#1A187C

secondary

#AEB13F

accent

#EA3DE7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1A187C

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

Preview Lab → · Contrast checker → · Palette generator →