#1B2C87#1B2C87

#1B2C87 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.152 H 268.5°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C87
RGB	rgb(27, 44, 135)
HSL	hsl(231, 67%, 32%)
HSV	hsv(231, 80%, 53%)
CMYK	cmyk(80%, 67.4%, 0%, 47.1%)
CIE-LAB	lab(22.94, 28.14, -52.57)
CIE-LCH	lch(22.94, 59.62, 298.16°)
OKLab	oklab(34.68% -0.004 -0.1521)
OKLCH	oklch(34.68% 0.152 268.5)
XYZ	xyz(5.7243, 3.7830, 23.3455)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C87 #87761B

analogous

#1B6287 #1B2C87 #401B87

triadic

#1B2C87 #871B2C #2C871B

tetradic

#1B2C87 #871B62 #87761B #1B8740

square

#1B2C87 #871B62 #87761B #1B8740

split-complementary

#1B2C87 #87401B #62871B

monochromatic

#070B21 #111B54 #1B2C87 #253DBA #435BD9

Accessibility & contrast

On white

11.95

#1B2C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1B2C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C87

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C87	#FFFFFF	#000000	##FFFFFF
##1B2C87	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8A

Deuteranopia (green-blind)

#003285

Tritanopia (blue-blind)

#004455

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2c87;
/* rgb */ color: rgb(27, 44, 135);
/* oklch */ color: oklch(34.7% 0.152 268.5);

Tailwind

colors: {
  custom: {
    50: '#6b65ab',
    500: '#1b2c87',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c87;
$custom-light: #6b65ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c87",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 135
  },
  "hsl": {
    "h": 230.556,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.34683,
    "c": 0.15218,
    "h": 268.5
  },
  "luminance": 0.03784
}

Semantic roles & 50–950 ramp

primary

#1B2C87

secondary

#BAA744

accent

#CF3EEA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1B2C87

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

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