#1B2E80#1B2E80

#1B2E80 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.140 H 267.9°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E80
RGB	rgb(27, 46, 128)
HSL	hsl(229, 65%, 30%)
HSV	hsv(229, 79%, 50%)
CMYK	cmyk(78.9%, 64.1%, 0%, 49.8%)
CIE-LAB	lab(22.81, 24.03, -48.38)
CIE-LCH	lch(22.81, 54.02, 296.41°)
OKLab	oklab(34.39% -0.005 -0.1399)
OKLCH	oklch(34.39% 0.14 267.9)
XYZ	xyz(5.3239, 3.7449, 20.8601)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E80 #806D1B

analogous

#1B6080 #1B2E80 #3A1B80

triadic

#1B2E80 #801B2E #2E801B

tetradic

#1B2E80 #801B60 #806D1B #1B803A

square

#1B2E80 #801B60 #806D1B #1B803A

split-complementary

#1B2E80 #803A1B #60801B

monochromatic

#060A1B #101C4D #1B2E80 #2640B3 #3F5BD6

Accessibility & contrast

On white

12.01

#1B2E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1B2E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E80

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E80	#FFFFFF	#000000	##FFFFFF
##1B2E80	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B83

Deuteranopia (green-blind)

#00327E

Tritanopia (blue-blind)

#004352

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2e80;
/* rgb */ color: rgb(27, 46, 128);
/* oklch */ color: oklch(34.4% 0.140 267.9);

Tailwind

colors: {
  custom: {
    50: '#6966a6',
    500: '#1b2e80',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e80;
$custom-light: #6966a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e80",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 128
  },
  "hsl": {
    "h": 228.713,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34385,
    "c": 0.13996,
    "h": 267.9
  },
  "luminance": 0.03746
}

Semantic roles & 50–950 ramp

primary

#1B2E80

secondary

#B49F43

accent

#C840E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B2E80

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

Preview Lab → · Contrast checker → · Palette generator →