#1D166E#1D166E

#1D166E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.143 H 275.8°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#1D166E
RGB	rgb(29, 22, 110)
HSL	hsl(245, 67%, 26%)
HSV	hsv(245, 80%, 43%)
CMYK	cmyk(73.6%, 80%, 0%, 56.9%)
CIE-LAB	lab(15.28, 33.21, -49.22)
CIE-LCH	lch(15.28, 59.37, 304.01°)
OKLab	oklab(28.41% 0.0144 -0.1423)
OKLCH	oklch(28.41% 0.143 275.8)
XYZ	xyz(3.6072, 1.9605, 14.9371)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D166E #676E16

analogous

#163B6E #1D166E #49166E

triadic

#1D166E #6E1D16 #166E1D

tetradic

#1D166E #6E163B #676E16 #166E49

square

#1D166E #6E163B #676E16 #166E49

split-complementary

#1D166E #6E4916 #3B6E16

monochromatic

#07051A #100C3B #1D166E #2A20A1 #382AD4

Accessibility & contrast

On white

15.08

#1D166E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1D166E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D166E

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D166E	#FFFFFF	#000000	##FFFFFF
##1D166E	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A71

Deuteranopia (green-blind)

#00226C

Tritanopia (blue-blind)

#003041

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1d166e;
/* rgb */ color: rgb(29, 22, 110);
/* oklch */ color: oklch(28.4% 0.143 275.8);

Tailwind

colors: {
  custom: {
    50: '#675599',
    500: '#1d166e',
    950: '#000000',
  },
}

SCSS

$custom: #1d166e;
$custom-light: #675599;
$custom-dark: #000000;

JSON

{
  "hex": "#1d166e",
  "rgb": {
    "r": 29,
    "g": 22,
    "b": 110
  },
  "hsl": {
    "h": 244.773,
    "s": 66.667,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28409,
    "c": 0.14302,
    "h": 275.8
  },
  "luminance": 0.01961
}

Semantic roles & 50–950 ramp

primary

#1D166E

secondary

#9CA43C

accent

#EA3EDC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D166E

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

Preview Lab → · Contrast checker → · Palette generator →