#1D197B#1D197B

#1D197B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.157 H 273.6°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D197B
RGB	rgb(29, 25, 123)
HSL	hsl(242, 66%, 29%)
HSV	hsv(242, 80%, 48%)
CMYK	cmyk(76.4%, 79.7%, 0%, 51.8%)
CIE-LAB	lab(17.40, 35.97, -54.11)
CIE-LCH	lch(17.40, 64.97, 303.61°)
OKLab	oklab(30.35% 0.0098 -0.1565)
OKLCH	oklch(30.35% 0.157 273.6)
XYZ	xyz(4.4283, 2.3861, 18.9622)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D197B #777B19

analogous

#19467B #1D197B #4E197B

triadic

#1D197B #7B1D19 #197B1D

tetradic

#1D197B #7B1946 #777B19 #197B4E

square

#1D197B #7B1946 #777B19 #197B4E

split-complementary

#1D197B #7B4E19 #467B19

monochromatic

#060519 #110F48 #1D197B #2923AE #3E38D7

Accessibility & contrast

On white

14.21

#1D197B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1D197B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D197B

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D197B	#FFFFFF	#000000	##FFFFFF
##1D197B	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7E

Deuteranopia (green-blind)

#002679

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1d197b;
/* rgb */ color: rgb(29, 25, 123);
/* oklch */ color: oklch(30.3% 0.157 273.6);

Tailwind

colors: {
  custom: {
    50: '#6a58a2',
    500: '#1d197b',
    950: '#000000',
  },
}

SCSS

$custom: #1d197b;
$custom-light: #6a58a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d197b",
  "rgb": {
    "r": 29,
    "g": 25,
    "b": 123
  },
  "hsl": {
    "h": 242.449,
    "s": 66.216,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30345,
    "c": 0.15686,
    "h": 273.6
  },
  "luminance": 0.02387
}

Semantic roles & 50–950 ramp

primary

#1D197B

secondary

#ABAF40

accent

#E93FE2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1D197B

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

Preview Lab → · Contrast checker → · Palette generator →