#1B1EA0#1B1EA0

#1B1EA0 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.198 H 269.4°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B1EA0
RGB	rgb(27, 30, 160)
HSL	hsl(239, 71%, 37%)
HSV	hsv(239, 83%, 63%)
CMYK	cmyk(83.1%, 81.3%, 0%, 37.3%)
CIE-LAB	lab(22.65, 45.55, -68.49)
CIE-LCH	lch(22.65, 82.25, 303.62°)
OKLab	oklab(35.28% -0.002 -0.1984)
OKLCH	oklch(35.28% 0.198 269.4)
XYZ	xyz(7.2593, 3.6988, 33.5822)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1EA0 #A09D1B

analogous

#1B61A0 #1B1EA0 #5B1BA0

triadic

#1B1EA0 #A01B1E #1EA01B

tetradic

#1B1EA0 #A01B61 #A09D1B #1BA05B

square

#1B1EA0 #A01B61 #A09D1B #1BA05B

split-complementary

#1B1EA0 #A05B1B #61A01B

monochromatic

#090A37 #12146C #1B1EA0 #2428D4 #5357E2

Accessibility & contrast

On white

12.07

#1B1EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B1EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1EA0

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1EA0	#FFFFFF	#000000	##FFFFFF
##1B1EA0	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#002F9E

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b1ea0;
/* rgb */ color: rgb(27, 30, 160);
/* oklch */ color: oklch(35.3% 0.198 269.4);

Tailwind

colors: {
  custom: {
    50: '#735dbe',
    500: '#1b1ea0',
    950: '#000000',
  },
}

SCSS

$custom: #1b1ea0;
$custom-light: #735dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1ea0",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 160
  },
  "hsl": {
    "h": 238.647,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35283,
    "c": 0.19837,
    "h": 269.4
  },
  "luminance": 0.037
}

Semantic roles & 50–950 ramp

primary

#1B1EA0

secondary

#C5C252

accent

#EA3AEE

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1B1EA0

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

Preview Lab → · Contrast checker → · Palette generator →