#1B2C88#1B2C88

#1B2C88 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.8% C 0.154 H 268.5°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C88
RGB	rgb(27, 44, 136)
HSL	hsl(231, 67%, 32%)
HSV	hsv(231, 80%, 53%)
CMYK	cmyk(80.1%, 67.6%, 0%, 46.7%)
CIE-LAB	lab(23.04, 28.53, -53.03)
CIE-LCH	lch(23.04, 60.22, 298.28°)
OKLab	oklab(34.78% -0.0041 -0.1535)
OKLCH	oklch(34.78% 0.154 268.5)
XYZ	xyz(5.7951, 3.8113, 23.7180)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C88 #88771B

analogous

#1B6388 #1B2C88 #411B88

triadic

#1B2C88 #881B2C #2C881B

tetradic

#1B2C88 #881B63 #88771B #1B8841

square

#1B2C88 #881B63 #88771B #1B8841

split-complementary

#1B2C88 #88411B #63881B

monochromatic

#070B22 #111B55 #1B2C88 #253DBB #445BDA

Accessibility & contrast

On white

11.92

#1B2C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1B2C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C88

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C88	#FFFFFF	#000000	##FFFFFF
##1B2C88	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8B

Deuteranopia (green-blind)

#003286

Tritanopia (blue-blind)

#004556

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2c88;
/* rgb */ color: rgb(27, 44, 136);
/* oklch */ color: oklch(34.8% 0.154 268.5);

Tailwind

colors: {
  custom: {
    50: '#6b65ac',
    500: '#1b2c88',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c88;
$custom-light: #6b65ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c88",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 136
  },
  "hsl": {
    "h": 230.642,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.34784,
    "c": 0.15355,
    "h": 268.5
  },
  "luminance": 0.03812
}

Semantic roles & 50–950 ramp

primary

#1B2C88

secondary

#BBA844

accent

#CF3EEA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1B2C88

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

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