#1A2371#1A2371

#1A2371 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.7% C 0.133 H 270.9°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#1A2371
RGB	rgb(26, 35, 113)
HSL	hsl(234, 63%, 27%)
HSV	hsv(234, 77%, 44%)
CMYK	cmyk(77%, 69%, 0%, 55.7%)
CIE-LAB	lab(18.42, 25.63, -46.00)
CIE-LCH	lch(18.42, 52.66, 299.13°)
OKLab	oklab(30.71% 0.0021 -0.133)
OKLCH	oklch(30.71% 0.133 270.9)
XYZ	xyz(4.0067, 2.6135, 15.9129)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2371 #71681A

analogous

#1A4F71 #1A2371 #3D1A71

triadic

#1A2371 #711A23 #23711A

tetradic

#1A2371 #711A4F #71681A #1A713D

square

#1A2371 #711A4F #71681A #1A713D

split-complementary

#1A2371 #713D1A #4F711A

monochromatic

#060819 #0F143F #1A2371 #2532A3 #3545D0

Accessibility & contrast

On white

13.79

#1A2371 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1A2371 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2371

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2371	#FFFFFF	#000000	##FFFFFF
##1A2371	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003173

Deuteranopia (green-blind)

#002970

Tritanopia (blue-blind)

#003846

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a2371;
/* rgb */ color: rgb(26, 35, 113);
/* oklch */ color: oklch(30.7% 0.133 270.9);

Tailwind

colors: {
  custom: {
    50: '#655e9b',
    500: '#1a2371',
    950: '#000000',
  },
}

SCSS

$custom: #1a2371;
$custom-light: #655e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2371",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 113
  },
  "hsl": {
    "h": 233.793,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.30709,
    "c": 0.13302,
    "h": 270.9
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#1A2371

secondary

#A69B41

accent

#D542E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1A2371

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

Preview Lab → · Contrast checker → · Palette generator →