#1B2380#1B2380

#1B2380 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.153 H 270.6°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B2380
RGB	rgb(27, 35, 128)
HSL	hsl(235, 65%, 30%)
HSV	hsv(235, 79%, 50%)
CMYK	cmyk(78.9%, 72.7%, 0%, 49.8%)
CIE-LAB	lab(20.02, 31.45, -52.97)
CIE-LCH	lch(20.02, 61.60, 300.70°)
OKLab	oklab(32.34% 0.0016 -0.1533)
OKLCH	oklch(32.34% 0.153 270.6)
XYZ	xyz(4.9480, 2.9930, 20.7348)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2380 #80781B

analogous

#1B5580 #1B2380 #461B80

triadic

#1B2380 #801B23 #23801B

tetradic

#1B2380 #801B55 #80781B #1B8046

square

#1B2380 #801B55 #80781B #1B8046

split-complementary

#1B2380 #80461B #55801B

monochromatic

#06071B #10154D #1B2380 #2631B3 #3F4BD6

Accessibility & contrast

On white

13.13

#1B2380 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B2380 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2380

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2380	#FFFFFF	#000000	##FFFFFF
##1B2380	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003583

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#003D4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2380;
/* rgb */ color: rgb(27, 35, 128);
/* oklch */ color: oklch(32.3% 0.153 270.6);

Tailwind

colors: {
  custom: {
    50: '#6a5ea6',
    500: '#1b2380',
    950: '#000000',
  },
}

SCSS

$custom: #1b2380;
$custom-light: #6a5ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2380",
  "rgb": {
    "r": 27,
    "g": 35,
    "b": 128
  },
  "hsl": {
    "h": 235.248,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32344,
    "c": 0.15335,
    "h": 270.6
  },
  "luminance": 0.02994
}

Semantic roles & 50–950 ramp

primary

#1B2380

secondary

#B4AB43

accent

#DB40E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1B2380

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

Preview Lab → · Contrast checker → · Palette generator →