#1B197D#1B197D

#1B197D is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.160 H 272.4°. Best body text is #FFFFFF at 14.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B197D
RGB	rgb(27, 25, 125)
HSL	hsl(241, 67%, 29%)
HSV	hsv(241, 80%, 49%)
CMYK	cmyk(78.4%, 80%, 0%, 51%)
CIE-LAB	lab(17.50, 36.49, -55.22)
CIE-LCH	lch(17.50, 66.18, 303.46°)
OKLab	oklab(30.45% 0.0068 -0.1598)
OKLCH	oklch(30.45% 0.16 272.4)
XYZ	xyz(4.5001, 2.4085, 19.6258)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B197D #7B7D19

analogous

#19497D #1B197D #4D197D

triadic

#1B197D #7D1B19 #197D1B

tetradic

#1B197D #7D1949 #7B7D19 #197D4D

square

#1B197D #7D1949 #7B7D19 #197D4D

split-complementary

#1B197D #7D4D19 #497D19

monochromatic

#06051A #100F4A #1B197D #2623B0 #3C39D7

Accessibility & contrast

On white

14.17

#1B197D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B197D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B197D

14.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B197D	#FFFFFF	#000000	##FFFFFF
##1B197D	1.00	14.17	1.48	14.17
#FFFFFF	14.17	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00267B

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b197d;
/* rgb */ color: rgb(27, 25, 125);
/* oklch */ color: oklch(30.5% 0.160 272.4);

Tailwind

colors: {
  custom: {
    50: '#6a58a4',
    500: '#1b197d',
    950: '#000000',
  },
}

SCSS

$custom: #1b197d;
$custom-light: #6a58a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b197d",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 125
  },
  "hsl": {
    "h": 241.2,
    "s": 66.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30453,
    "c": 0.15996,
    "h": 272.4
  },
  "luminance": 0.02409
}

Semantic roles & 50–950 ramp

primary

#1B197D

secondary

#AFB140

accent

#EA3EE6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1B197D

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

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