#1D279A#1D279A

#1D279A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.182 H 269.5°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#1D279A
RGB	rgb(29, 39, 154)
HSL	hsl(235, 68%, 36%)
HSV	hsv(235, 81%, 60%)
CMYK	cmyk(81.2%, 74.7%, 0%, 39.6%)
CIE-LAB	lab(23.82, 38.58, -62.88)
CIE-LCH	lch(23.82, 73.77, 301.53°)
OKLab	oklab(35.93% -0.0016 -0.1822)
OKLCH	oklch(35.93% 0.182 269.5)
XYZ	xyz(7.0629, 4.0445, 30.9740)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D279A #9A901D

analogous

#1D659A #1D279A #511D9A

triadic

#1D279A #9A1D27 #279A1D

tetradic

#1D279A #9A1D65 #9A901D #1D9A51

square

#1D279A #9A1D65 #9A901D #1D9A51

split-complementary

#1D279A #9A511D #659A1D

monochromatic

#0A0D33 #131A66 #1D279A #2734CE #535EDF

Accessibility & contrast

On white

11.61

#1D279A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1D279A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D279A

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D279A	#FFFFFF	#000000	##FFFFFF
##1D279A	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9D

Deuteranopia (green-blind)

#003298

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d279a;
/* rgb */ color: rgb(29, 39, 154);
/* oklch */ color: oklch(35.9% 0.182 269.5);

Tailwind

colors: {
  custom: {
    50: '#7162b9',
    500: '#1d279a',
    950: '#000000',
  },
}

SCSS

$custom: #1d279a;
$custom-light: #7162b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d279a",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 154
  },
  "hsl": {
    "h": 235.2,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35932,
    "c": 0.18218,
    "h": 269.5
  },
  "luminance": 0.04045
}

Semantic roles & 50–950 ramp

primary

#1D279A

secondary

#C2B951

accent

#DD3DEB

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #1D279A

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

Preview Lab → · Contrast checker → · Palette generator →