#1F118C#1F118C

#1F118C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.183 H 273.3°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F118C
RGB	rgb(31, 17, 140)
HSL	hsl(247, 78%, 31%)
HSV	hsv(247, 88%, 55%)
CMYK	cmyk(77.9%, 87.9%, 0%, 45.1%)
CIE-LAB	lab(18.30, 45.53, -63.36)
CIE-LCH	lch(18.30, 78.02, 305.70°)
OKLab	oklab(31.62% 0.0106 -0.1832)
OKLCH	oklch(31.62% 0.183 273.3)
XYZ	xyz(5.4976, 2.5851, 25.0151)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F118C #7E8C11

analogous

#11408C #1F118C #5C118C

triadic

#1F118C #8C1F11 #118C1F

tetradic

#1F118C #8C1140 #7E8C11 #118C5C

square

#1F118C #8C1140 #7E8C11 #118C5C

split-complementary

#1F118C #8C5C11 #408C11

monochromatic

#07041F #130A55 #1F118C #2B18C3 #4631E6

Accessibility & contrast

On white

13.84

#1F118C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1F118C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F118C

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F118C	#FFFFFF	#000000	##FFFFFF
##1F118C	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003A52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f118c;
/* rgb */ color: rgb(31, 17, 140);
/* oklch */ color: oklch(31.6% 0.183 273.3);

Tailwind

colors: {
  custom: {
    50: '#7055af',
    500: '#1f118c',
    950: '#000000',
  },
}

SCSS

$custom: #1f118c;
$custom-light: #7055af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f118c",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 140
  },
  "hsl": {
    "h": 246.829,
    "s": 78.344,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31616,
    "c": 0.18348,
    "h": 273.3
  },
  "luminance": 0.02586
}

Semantic roles & 50–950 ramp

primary

#1F118C

secondary

#B1C138

accent

#F533DF

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1F118C

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

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