#1B2F86#1B2F86

#1B2F86 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.147 H 267.7°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F86
RGB	rgb(27, 47, 134)
HSL	hsl(229, 66%, 32%)
HSV	hsv(229, 80%, 53%)
CMYK	cmyk(79.9%, 64.9%, 0%, 47.5%)
CIE-LAB	lab(23.63, 25.70, -50.81)
CIE-LCH	lch(23.63, 56.95, 296.83°)
OKLab	oklab(35.16% -0.0058 -0.147)
OKLCH	oklch(35.16% 0.147 267.7)
XYZ	xyz(5.7701, 3.9866, 23.0150)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F86 #86721B

analogous

#1B6586 #1B2F86 #3D1B86

triadic

#1B2F86 #861B2F #2F861B

tetradic

#1B2F86 #861B65 #86721B #1B863D

square

#1B2F86 #861B65 #86721B #1B863D

split-complementary

#1B2F86 #863D1B #65861B

monochromatic

#060B20 #111D53 #1B2F86 #2541B9 #425FD9

Accessibility & contrast

On white

11.68

#1B2F86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1B2F86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F86

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F86	#FFFFFF	#000000	##FFFFFF
##1B2F86	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D89

Deuteranopia (green-blind)

#003384

Tritanopia (blue-blind)

#004656

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b2f86;
/* rgb */ color: rgb(27, 47, 134);
/* oklch */ color: oklch(35.2% 0.147 267.7);

Tailwind

colors: {
  custom: {
    50: '#6a67aa',
    500: '#1b2f86',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f86;
$custom-light: #6a67aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f86",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 134
  },
  "hsl": {
    "h": 228.785,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35159,
    "c": 0.14709,
    "h": 267.7
  },
  "luminance": 0.03987
}

Semantic roles & 50–950 ramp

primary

#1B2F86

secondary

#B9A344

accent

#C93EE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1B2F86

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

Preview Lab → · Contrast checker → · Palette generator →