#1D278C#1D278C

#1D278C is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.164 H 270.1°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D278C
RGB	rgb(29, 39, 140)
HSL	hsl(235, 66%, 33%)
HSV	hsv(235, 79%, 55%)
CMYK	cmyk(79.3%, 72.1%, 0%, 45.1%)
CIE-LAB	lab(22.32, 33.52, -56.70)
CIE-LCH	lch(22.32, 65.87, 300.59°)
OKLab	oklab(34.41% 0.0002 -0.1642)
OKLCH	oklch(34.41% 0.164 270.1)
XYZ	xyz(5.9642, 3.6050, 25.1874)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D278C #8C821D

analogous

#1D5E8C #1D278C #4B1D8C

triadic

#1D278C #8C1D27 #278C1D

tetradic

#1D278C #8C1D5E #8C821D #1D8C4B

square

#1D278C #8C1D5E #8C821D #1D8C4B

split-complementary

#1D278C #8C4B1D #5E8C1D

monochromatic

#080B27 #121959 #1D278C #2835BF #4A57D9

Accessibility & contrast

On white

12.20

#1D278C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1D278C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D278C

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D278C	#FFFFFF	#000000	##FFFFFF
##1D278C	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8F

Deuteranopia (green-blind)

#00308A

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d278c;
/* rgb */ color: rgb(29, 39, 140);
/* oklch */ color: oklch(34.4% 0.164 270.1);

Tailwind

colors: {
  custom: {
    50: '#6d61af',
    500: '#1d278c',
    950: '#000000',
  },
}

SCSS

$custom: #1d278c;
$custom-light: #6d61af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d278c",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 140
  },
  "hsl": {
    "h": 234.595,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34412,
    "c": 0.16419,
    "h": 270.1
  },
  "luminance": 0.03606
}

Semantic roles & 50–950 ramp

primary

#1D278C

secondary

#BCB149

accent

#D93FE9

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D278C

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

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