#1B1E7C#1B1E7C

#1B1E7C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.154 H 271.8°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B1E7C
RGB	rgb(27, 30, 124)
HSL	hsl(238, 64%, 30%)
HSV	hsv(238, 78%, 49%)
CMYK	cmyk(78.2%, 75.8%, 0%, 51.4%)
CIE-LAB	lab(18.44, 33.16, -53.03)
CIE-LCH	lch(18.44, 62.54, 302.01°)
OKLab	oklab(31.08% 0.0047 -0.1535)
OKLCH	oklch(31.08% 0.154 271.8)
XYZ	xyz(4.5531, 2.6163, 19.3299)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1E7C #7C791B

analogous

#1B4F7C #1B1E7C #481B7C

triadic

#1B1E7C #7C1B1E #1E7C1B

tetradic

#1B1E7C #7C1B4F #7C791B #1B7C48

square

#1B1E7C #7C1B4F #7C791B #1B7C48

split-complementary

#1B1E7C #7C481B #4F7C1B

monochromatic

#050619 #10124A #1B1E7C #262AAE #3D41D5

Accessibility & contrast

On white

13.78

#1B1E7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1B1E7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1E7C

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1E7C	#FFFFFF	#000000	##FFFFFF
##1B1E7C	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327F

Deuteranopia (green-blind)

#00287A

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b1e7c;
/* rgb */ color: rgb(27, 30, 124);
/* oklch */ color: oklch(31.1% 0.154 271.8);

Tailwind

colors: {
  custom: {
    50: '#695ba3',
    500: '#1b1e7c',
    950: '#000000',
  },
}

SCSS

$custom: #1b1e7c;
$custom-light: #695ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1e7c",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 124
  },
  "hsl": {
    "h": 238.144,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31082,
    "c": 0.15358,
    "h": 271.8
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#1B1E7C

secondary

#B0AD43

accent

#E241E7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B1E7C

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

Preview Lab → · Contrast checker → · Palette generator →