#1B2B86#1B2B86

#1B2B86 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.152 H 268.7°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B86
RGB	rgb(27, 43, 134)
HSL	hsl(231, 66%, 32%)
HSV	hsv(231, 80%, 53%)
CMYK	cmyk(79.9%, 67.9%, 0%, 47.5%)
CIE-LAB	lab(22.59, 28.43, -52.52)
CIE-LCH	lch(22.59, 59.72, 298.43°)
OKLab	oklab(34.4% -0.0034 -0.152)
OKLCH	oklch(34.4% 0.152 268.7)
XYZ	xyz(5.6175, 3.6814, 22.9641)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B86 #86761B

analogous

#1B6186 #1B2B86 #411B86

triadic

#1B2B86 #861B2B #2B861B

tetradic

#1B2B86 #861B61 #86761B #1B8641

square

#1B2B86 #861B61 #86761B #1B8641

split-complementary

#1B2B86 #86411B #61861B

monochromatic

#060A20 #111B53 #1B2B86 #253BB9 #4259D9

Accessibility & contrast

On white

12.09

#1B2B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B2B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B86

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B86	#FFFFFF	#000000	##FFFFFF
##1B2B86	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B89

Deuteranopia (green-blind)

#003184

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2b86;
/* rgb */ color: rgb(27, 43, 134);
/* oklch */ color: oklch(34.4% 0.152 268.7);

Tailwind

colors: {
  custom: {
    50: '#6b64aa',
    500: '#1b2b86',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b86;
$custom-light: #6b64aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b86",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 134
  },
  "hsl": {
    "h": 231.028,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.34396,
    "c": 0.15204,
    "h": 268.7
  },
  "luminance": 0.03682
}

Semantic roles & 50–950 ramp

primary

#1B2B86

secondary

#B9A844

accent

#D03EE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1B2B86

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

Preview Lab → · Contrast checker → · Palette generator →