#1B2D87#1B2D87

#1B2D87 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.151 H 268.3°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D87
RGB	rgb(27, 45, 135)
HSL	hsl(230, 67%, 32%)
HSV	hsv(230, 80%, 53%)
CMYK	cmyk(80%, 66.7%, 0%, 47.1%)
CIE-LAB	lab(23.20, 27.46, -52.14)
CIE-LCH	lch(23.20, 58.93, 297.77°)
OKLab	oklab(34.87% -0.0046 -0.1509)
OKLCH	oklch(34.87% 0.151 268.3)
XYZ	xyz(5.7620, 3.8584, 23.3580)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D87 #87751B

analogous

#1B6387 #1B2D87 #3F1B87

triadic

#1B2D87 #871B2D #2D871B

tetradic

#1B2D87 #871B63 #87751B #1B873F

square

#1B2D87 #871B63 #87751B #1B873F

split-complementary

#1B2D87 #873F1B #63871B

monochromatic

#070B21 #111C54 #1B2D87 #253EBA #435CD9

Accessibility & contrast

On white

11.85

#1B2D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1B2D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D87

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D87	#FFFFFF	#000000	##FFFFFF
##1B2D87	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8A

Deuteranopia (green-blind)

#003285

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2d87;
/* rgb */ color: rgb(27, 45, 135);
/* oklch */ color: oklch(34.9% 0.151 268.3);

Tailwind

colors: {
  custom: {
    50: '#6b65ab',
    500: '#1b2d87',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d87;
$custom-light: #6b65ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d87",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 135
  },
  "hsl": {
    "h": 230,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.34872,
    "c": 0.15096,
    "h": 268.3
  },
  "luminance": 0.03859
}

Semantic roles & 50–950 ramp

primary

#1B2D87

secondary

#BAA644

accent

#CD3EEA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1B2D87

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

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