#1D2F78#1D2F78

#1D2F78 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.9% C 0.127 H 268.3°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F78
RGB	rgb(29, 47, 120)
HSL	hsl(228, 61%, 29%)
HSV	hsv(228, 76%, 47%)
CMYK	cmyk(75.8%, 60.8%, 0%, 52.9%)
CIE-LAB	lab(22.48, 20.39, -43.85)
CIE-LCH	lch(22.48, 48.36, 294.94°)
OKLab	oklab(33.95% -0.0038 -0.1265)
OKLCH	oklch(33.95% 0.127 268.3)
XYZ	xyz(4.9122, 3.6498, 18.2113)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F78 #78661D

analogous

#1D5D78 #1D2F78 #391D78

triadic

#1D2F78 #781D2F #2F781D

tetradic

#1D2F78 #781D5D #78661D #1D7839

square

#1D2F78 #781D5D #78661D #1D7839

split-complementary

#1D2F78 #78391D #5D781D

monochromatic

#060A19 #111C47 #1D2F78 #2942A9 #3F5CD1

Accessibility & contrast

On white

12.14

#1D2F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D2F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F78

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F78	#FFFFFF	#000000	##FFFFFF
##1D2F78	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7A

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#00414E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d2f78;
/* rgb */ color: rgb(29, 47, 120);
/* oklch */ color: oklch(33.9% 0.127 268.3);

Tailwind

colors: {
  custom: {
    50: '#6767a0',
    500: '#1d2f78',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f78;
$custom-light: #6767a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f78",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 120
  },
  "hsl": {
    "h": 228.132,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33946,
    "c": 0.12658,
    "h": 268.3
  },
  "luminance": 0.0365
}

Semantic roles & 50–950 ramp

primary

#1D2F78

secondary

#AC9845

accent

#C444E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #1D2F78

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

Preview Lab → · Contrast checker → · Palette generator →