#1D2F80#1D2F80

#1D2F80 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.7% C 0.138 H 268.4°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F80
RGB	rgb(29, 47, 128)
HSL	hsl(229, 63%, 31%)
HSV	hsv(229, 77%, 50%)
CMYK	cmyk(77.3%, 63.3%, 0%, 49.8%)
CIE-LAB	lab(23.18, 23.57, -47.78)
CIE-LCH	lch(23.18, 53.27, 296.25°)
OKLab	oklab(34.68% -0.0038 -0.138)
OKLCH	oklch(34.68% 0.138 268.4)
XYZ	xyz(5.4181, 3.8522, 20.8759)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F80 #806E1D

analogous

#1D6080 #1D2F80 #3C1D80

triadic

#1D2F80 #801D2F #2F801D

tetradic

#1D2F80 #801D60 #806E1D #1D803C

square

#1D2F80 #801D60 #806E1D #1D803C

split-complementary

#1D2F80 #803C1D #60801D

monochromatic

#060A1C #121D4E #1D2F80 #2841B2 #435DD4

Accessibility & contrast

On white

11.86

#1D2F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1D2F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F80

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F80	#FFFFFF	#000000	##FFFFFF
##1D2F80	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C83

Deuteranopia (green-blind)

#00337E

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d2f80;
/* rgb */ color: rgb(29, 47, 128);
/* oklch */ color: oklch(34.7% 0.138 268.4);

Tailwind

colors: {
  custom: {
    50: '#6967a6',
    500: '#1d2f80',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f80;
$custom-light: #6967a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f80",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 128
  },
  "hsl": {
    "h": 229.091,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34683,
    "c": 0.1381,
    "h": 268.4
  },
  "luminance": 0.03853
}

Semantic roles & 50–950 ramp

primary

#1D2F80

secondary

#B39F45

accent

#C842E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D2F80

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

Preview Lab → · Contrast checker → · Palette generator →