#1D107E#1D107E

#1D107E is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.6% C 0.168 H 274.2°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#1D107E
RGB	rgb(29, 16, 126)
HSL	hsl(247, 77%, 28%)
HSV	hsv(247, 87%, 49%)
CMYK	cmyk(77%, 87.3%, 0%, 50.6%)
CIE-LAB	lab(16.19, 41.53, -58.02)
CIE-LCH	lch(16.19, 71.35, 305.60°)
OKLab	oklab(29.62% 0.0123 -0.1677)
OKLCH	oklch(29.62% 0.168 274.2)
XYZ	xyz(4.4566, 2.1377, 19.9124)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D107E #717E10

analogous

#103A7E #1D107E #54107E

triadic

#1D107E #7E1D10 #107E1D

tetradic

#1D107E #7E103A #717E10 #107E54

square

#1D107E #7E103A #717E10 #107E54

split-complementary

#1D107E #7E5410 #3A7E10

monochromatic

#06031B #110948 #1D107E #2917B4 #3C25E3

Accessibility & contrast

On white

14.71

#1D107E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1D107E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D107E

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D107E	#FFFFFF	#000000	##FFFFFF
##1D107E	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D81

Deuteranopia (green-blind)

#00237C

Tritanopia (blue-blind)

#003449

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1d107e;
/* rgb */ color: rgb(29, 16, 126);
/* oklch */ color: oklch(29.6% 0.168 274.2);

Tailwind

colors: {
  custom: {
    50: '#6c53a5',
    500: '#1d107e',
    950: '#000000',
  },
}

SCSS

$custom: #1d107e;
$custom-light: #6c53a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d107e",
  "rgb": {
    "r": 29,
    "g": 16,
    "b": 126
  },
  "hsl": {
    "h": 247.091,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29618,
    "c": 0.16818,
    "h": 274.2
  },
  "luminance": 0.02138
}

Semantic roles & 50–950 ramp

primary

#1D107E

secondary

#A5B436

accent

#F434DD

background

#F7F4FA

surface

#EDE7F4

border

#C8C3CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1D107E

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

Preview Lab → · Contrast checker → · Palette generator →