#1B2EA0#1B2EA0

#1B2EA0 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.6% C 0.183 H 267.8°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B2EA0
RGB	rgb(27, 46, 160)
HSL	hsl(231, 71%, 37%)
HSV	hsv(231, 83%, 63%)
CMYK	cmyk(83.1%, 71.2%, 0%, 37.3%)
CIE-LAB	lab(25.93, 36.27, -63.06)
CIE-LCH	lch(25.93, 72.75, 299.91°)
OKLab	oklab(37.62% -0.0069 -0.1827)
OKLCH	oklch(37.62% 0.183 267.8)
XYZ	xyz(7.7720, 4.7241, 33.7531)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2EA0 #A08D1B

analogous

#1B71A0 #1B2EA0 #4B1BA0

triadic

#1B2EA0 #A01B2E #2EA01B

tetradic

#1B2EA0 #A01B71 #A08D1B #1BA04B

square

#1B2EA0 #A01B71 #A08D1B #1BA04B

split-complementary

#1B2EA0 #A04B1B #71A01B

monochromatic

#091037 #121F6C #1B2EA0 #243DD4 #5368E2

Accessibility & contrast

On white

10.80

#1B2EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1B2EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2EA0

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2EA0	#FFFFFF	#000000	##FFFFFF
##1B2EA0	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A3

Deuteranopia (green-blind)

#00379E

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1b2ea0;
/* rgb */ color: rgb(27, 46, 160);
/* oklch */ color: oklch(37.6% 0.183 267.8);

Tailwind

colors: {
  custom: {
    50: '#7167bd',
    500: '#1b2ea0',
    950: '#000000',
  },
}

SCSS

$custom: #1b2ea0;
$custom-light: #7167bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2ea0",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 160
  },
  "hsl": {
    "h": 231.429,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37618,
    "c": 0.18287,
    "h": 267.8
  },
  "luminance": 0.04725
}

Semantic roles & 50–950 ramp

primary

#1B2EA0

secondary

#C5B552

accent

#D43AEE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1B2EA0

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

Preview Lab → · Contrast checker → · Palette generator →