#1B2EB4#1B2EB4

#1B2EB4 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 39.8% C 0.208 H 267.5°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B2EB4
RGB	rgb(27, 46, 180)
HSL	hsl(233, 74%, 41%)
HSV	hsv(233, 85%, 71%)
CMYK	cmyk(85%, 74.4%, 0%, 29.4%)
CIE-LAB	lab(28.06, 43.44, -71.58)
CIE-LCH	lch(28.06, 83.73, 301.25°)
OKLab	oklab(39.78% -0.0091 -0.2075)
OKLCH	oklch(39.78% 0.208 267.5)
XYZ	xyz(9.6644, 5.4811, 43.7198)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2EB4 #B4A11B

analogous

#1B7AB4 #1B2EB4 #541BB4

triadic

#1B2EB4 #B41B2E #2EB41B

tetradic

#1B2EB4 #B41B7A #B4A11B #1BB454

square

#1B2EB4 #B41B7A #B4A11B #1BB454

split-complementary

#1B2EB4 #B4541B #7AB41B

monochromatic

#0B134A #13207F #1B2EB4 #2D43DF #6273E7

Accessibility & contrast

On white

10.02

#1B2EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1B2EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2EB4

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2EB4	#FFFFFF	#000000	##FFFFFF
##1B2EB4	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB8

Deuteranopia (green-blind)

#003BB2

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b2eb4;
/* rgb */ color: rgb(27, 46, 180);
/* oklch */ color: oklch(39.8% 0.208 267.5);

Tailwind

colors: {
  custom: {
    50: '#7768cc',
    500: '#1b2eb4',
    950: '#000000',
  },
}

SCSS

$custom: #1b2eb4;
$custom-light: #7768cc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2eb4",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 180
  },
  "hsl": {
    "h": 232.549,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39779,
    "c": 0.2077,
    "h": 267.5
  },
  "luminance": 0.05482
}

Semantic roles & 50–950 ramp

primary

#1B2EB4

secondary

#CCBE5F

accent

#DA37F1

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #1B2EB4

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

Preview Lab → · Contrast checker → · Palette generator →