#1B2480#1B2480

#1B2480 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.152 H 270.4°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B2480
RGB	rgb(27, 36, 128)
HSL	hsl(235, 65%, 30%)
HSV	hsv(235, 79%, 50%)
CMYK	cmyk(78.9%, 71.9%, 0%, 49.8%)
CIE-LAB	lab(20.25, 30.80, -52.58)
CIE-LCH	lch(20.25, 60.94, 300.36°)
OKLab	oklab(32.52% 0.0011 -0.1522)
OKLCH	oklch(32.52% 0.152 270.4)
XYZ	xyz(4.9778, 3.0527, 20.7448)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2480 #80771B

analogous

#1B5780 #1B2480 #441B80

triadic

#1B2480 #801B24 #24801B

tetradic

#1B2480 #801B57 #80771B #1B8044

square

#1B2480 #801B57 #80771B #1B8044

split-complementary

#1B2480 #80441B #57801B

monochromatic

#06081B #10164D #1B2480 #2632B3 #3F4CD6

Accessibility & contrast

On white

13.04

#1B2480 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1B2480 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2480

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2480	#FFFFFF	#000000	##FFFFFF
##1B2480	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003683

Deuteranopia (green-blind)

#002C7E

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2480;
/* rgb */ color: rgb(27, 36, 128);
/* oklch */ color: oklch(32.5% 0.152 270.4);

Tailwind

colors: {
  custom: {
    50: '#6a5fa6',
    500: '#1b2480',
    950: '#000000',
  },
}

SCSS

$custom: #1b2480;
$custom-light: #6a5fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2480",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 128
  },
  "hsl": {
    "h": 234.653,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32515,
    "c": 0.1522,
    "h": 270.4
  },
  "luminance": 0.03053
}

Semantic roles & 50–950 ramp

primary

#1B2480

secondary

#B4AA43

accent

#D940E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B2480

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

Preview Lab → · Contrast checker → · Palette generator →