#1D278F#1D278F

#1D278F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.7% C 0.168 H 269.9°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#1D278F
RGB	rgb(29, 39, 143)
HSL	hsl(235, 66%, 34%)
HSV	hsv(235, 80%, 56%)
CMYK	cmyk(79.7%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(22.64, 34.62, -58.05)
CIE-LCH	lch(22.64, 67.59, 300.81°)
OKLab	oklab(34.73% -0.0001 -0.1681)
OKLCH	oklch(34.73% 0.168 269.9)
XYZ	xyz(6.1884, 3.6947, 26.3683)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D278F #8F851D

analogous

#1D608F #1D278F #4C1D8F

triadic

#1D278F #8F1D27 #278F1D

tetradic

#1D278F #8F1D60 #8F851D #1D8F4C

square

#1D278F #8F1D60 #8F851D #1D8F4C

split-complementary

#1D278F #8F4C1D #608F1D

monochromatic

#080B29 #13195C #1D278F #2735C2 #4C58DB

Accessibility & contrast

On white

12.08

#1D278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D278F

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D278F	#FFFFFF	#000000	##FFFFFF
##1D278F	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C92

Deuteranopia (green-blind)

#00308D

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d278f;
/* rgb */ color: rgb(29, 39, 143);
/* oklch */ color: oklch(34.7% 0.168 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e62b1',
    500: '#1d278f',
    950: '#000000',
  },
}

SCSS

$custom: #1d278f;
$custom-light: #6e62b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d278f",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 234.737,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34733,
    "c": 0.16811,
    "h": 269.9
  },
  "luminance": 0.03695
}

Semantic roles & 50–950 ramp

primary

#1D278F

secondary

#BDB34B

accent

#DA3FE9

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1D278F

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

Preview Lab → · Contrast checker → · Palette generator →