#1D277A#1D277A

#1D277A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.140 H 270.8°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D277A
RGB	rgb(29, 39, 122)
HSL	hsl(234, 62%, 30%)
HSV	hsv(234, 76%, 48%)
CMYK	cmyk(76.2%, 68%, 0%, 52.2%)
CIE-LAB	lab(20.51, 26.74, -48.35)
CIE-LCH	lch(20.51, 55.25, 298.94°)
OKLab	oklab(32.55% 0.002 -0.1398)
OKLCH	oklch(32.55% 0.14 270.8)
XYZ	xyz(4.7439, 3.1169, 18.7602)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D277A #7A701D

analogous

#1D567A #1D277A #411D7A

triadic

#1D277A #7A1D27 #277A1D

tetradic

#1D277A #7A1D56 #7A701D #1D7A41

square

#1D277A #7A1D56 #7A701D #1D7A41

split-complementary

#1D277A #7A411D #567A1D

monochromatic

#060819 #111749 #1D277A #2937AB #4050D2

Accessibility & contrast

On white

12.94

#1D277A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D277A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D277A

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D277A	#FFFFFF	#000000	##FFFFFF
##1D277A	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#002D78

Tritanopia (blue-blind)

#003D4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d277a;
/* rgb */ color: rgb(29, 39, 122);
/* oklch */ color: oklch(32.5% 0.140 270.8);

Tailwind

colors: {
  custom: {
    50: '#6961a1',
    500: '#1d277a',
    950: '#000000',
  },
}

SCSS

$custom: #1d277a;
$custom-light: #6961a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d277a",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 122
  },
  "hsl": {
    "h": 233.548,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32545,
    "c": 0.1398,
    "h": 270.8
  },
  "luminance": 0.03117
}

Semantic roles & 50–950 ramp

primary

#1D277A

secondary

#AEA245

accent

#D343E5

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D277A

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

Preview Lab → · Contrast checker → · Palette generator →