#1B197E#1B197E

#1B197E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.6% C 0.161 H 272.3°. Best body text is #FFFFFF at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B197E
RGB	rgb(27, 25, 126)
HSL	hsl(241, 67%, 30%)
HSV	hsv(241, 80%, 49%)
CMYK	cmyk(78.6%, 80.2%, 0%, 50.6%)
CIE-LAB	lab(17.62, 36.83, -55.66)
CIE-LCH	lch(17.62, 66.74, 303.50°)
OKLab	oklab(30.57% 0.0065 -0.1611)
OKLCH	oklch(30.57% 0.161 272.3)
XYZ	xyz(4.5643, 2.4341, 19.9639)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B197E #7C7E19

analogous

#194A7E #1B197E #4E197E

triadic

#1B197E #7E1B19 #197E1B

tetradic

#1B197E #7E194A #7C7E19 #197E4E

square

#1B197E #7E194A #7C7E19 #197E4E

split-complementary

#1B197E #7E4E19 #4A7E19

monochromatic

#05051A #100F4B #1B197E #2623B1 #3D3AD8

Accessibility & contrast

On white

14.12

#1B197E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B197E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B197E

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B197E	#FFFFFF	#000000	##FFFFFF
##1B197E	1.00	14.12	1.49	14.12
#FFFFFF	14.12	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b197e;
/* rgb */ color: rgb(27, 25, 126);
/* oklch */ color: oklch(30.6% 0.161 272.3);

Tailwind

colors: {
  custom: {
    50: '#6a58a5',
    500: '#1b197e',
    950: '#000000',
  },
}

SCSS

$custom: #1b197e;
$custom-light: #6a58a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b197e",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 126
  },
  "hsl": {
    "h": 241.188,
    "s": 66.887,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30571,
    "c": 0.16122,
    "h": 272.3
  },
  "luminance": 0.02435
}

Semantic roles & 50–950 ramp

primary

#1B197E

secondary

#B0B241

accent

#EA3EE6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1B197E

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

Preview Lab → · Contrast checker → · Palette generator →