#1D156E#1D156E

#1D156E is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.144 H 275.9°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#1D156E
RGB	rgb(29, 21, 110)
HSL	hsl(245, 68%, 26%)
HSV	hsv(245, 81%, 43%)
CMYK	cmyk(73.6%, 80.9%, 0%, 56.9%)
CIE-LAB	lab(15.08, 33.78, -49.55)
CIE-LCH	lch(15.08, 59.97, 304.28°)
OKLab	oklab(28.27% 0.0149 -0.1432)
OKLCH	oklch(28.27% 0.144 275.9)
XYZ	xyz(3.5884, 1.9230, 14.9309)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D156E #666E15

analogous

#15396E #1D156E #49156E

triadic

#1D156E #6E1D15 #156E1D

tetradic

#1D156E #6E1539 #666E15 #156E49

square

#1D156E #6E1539 #666E15 #156E49

split-complementary

#1D156E #6E4915 #396E15

monochromatic

#07051A #0F0B3B #1D156E #2B1FA1 #3829D5

Accessibility & contrast

On white

15.17

#1D156E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1D156E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D156E

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D156E	#FFFFFF	#000000	##FFFFFF
##1D156E	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	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: #1d156e;
/* rgb */ color: rgb(29, 21, 110);
/* oklch */ color: oklch(28.3% 0.144 275.9);

Tailwind

colors: {
  custom: {
    50: '#675499',
    500: '#1d156e',
    950: '#000000',
  },
}

SCSS

$custom: #1d156e;
$custom-light: #675499;
$custom-dark: #000000;

JSON

{
  "hex": "#1d156e",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 110
  },
  "hsl": {
    "h": 245.393,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28268,
    "c": 0.14402,
    "h": 275.9
  },
  "luminance": 0.01923
}

Semantic roles & 50–950 ramp

primary

#1D156E

secondary

#9BA43A

accent

#EB3DDB

background

#F6F5F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D156E

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

Preview Lab → · Contrast checker → · Palette generator →