#1F116E#1F116E

#1F116E is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.9% C 0.147 H 277.8°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F116E
RGB	rgb(31, 17, 110)
HSL	hsl(249, 73%, 25%)
HSV	hsv(249, 85%, 43%)
CMYK	cmyk(71.8%, 84.5%, 0%, 56.9%)
CIE-LAB	lab(14.50, 36.13, -50.50)
CIE-LCH	lch(14.50, 62.09, 305.58°)
OKLab	oklab(27.91% 0.0199 -0.1459)
OKLCH	oklch(27.91% 0.147 277.8)
XYZ	xyz(3.5791, 1.8177, 14.9111)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F116E #606E11

analogous

#11326E #1F116E #4D116E

triadic

#1F116E #6E1F11 #116E1F

tetradic

#1F116E #6E1132 #606E11 #116E4D

square

#1F116E #6E1132 #606E11 #116E4D

split-complementary

#1F116E #6E4D11 #326E11

monochromatic

#07041B #100939 #1F116E #2E19A3 #3D21D8

Accessibility & contrast

On white

15.40

#1F116E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1F116E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F116E

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F116E	#FFFFFF	#000000	##FFFFFF
##1F116E	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002871

Deuteranopia (green-blind)

#00216C

Tritanopia (blue-blind)

#002E40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f116e;
/* rgb */ color: rgb(31, 17, 110);
/* oklch */ color: oklch(27.9% 0.147 277.8);

Tailwind

colors: {
  custom: {
    50: '#685299',
    500: '#1f116e',
    950: '#000000',
  },
}

SCSS

$custom: #1f116e;
$custom-light: #685299;
$custom-dark: #000000;

JSON

{
  "hex": "#1f116e",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 110
  },
  "hsl": {
    "h": 249.032,
    "s": 73.228,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27908,
    "c": 0.14726,
    "h": 277.8
  },
  "luminance": 0.01818
}

Semantic roles & 50–950 ramp

primary

#1F116E

secondary

#95A535

accent

#F038D4

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F116E

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

Preview Lab → · Contrast checker → · Palette generator →