#1D2277#1D2277

#1D2277 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.142 H 272.3°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1D2277
RGB	rgb(29, 34, 119)
HSL	hsl(237, 61%, 29%)
HSV	hsv(237, 76%, 47%)
CMYK	cmyk(75.6%, 71.4%, 0%, 53.3%)
CIE-LAB	lab(18.96, 28.96, -48.97)
CIE-LCH	lch(18.96, 56.89, 300.59°)
OKLab	oklab(31.33% 0.0056 -0.1416)
OKLCH	oklch(31.33% 0.142 272.3)
XYZ	xyz(4.4074, 2.7367, 17.7452)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2277 #77721D

analogous

#1D4F77 #1D2277 #451D77

triadic

#1D2277 #771D22 #22771D

tetradic

#1D2277 #771D4F #77721D #1D7745

square

#1D2277 #771D4F #77721D #1D7745

split-complementary

#1D2277 #77451D #4F771D

monochromatic

#060719 #111446 #1D2277 #2930A8 #3E46D0

Accessibility & contrast

On white

13.57

#1D2277 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D2277 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2277

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2277	#FFFFFF	#000000	##FFFFFF
##1D2277	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002A75

Tritanopia (blue-blind)

#003949

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d2277;
/* rgb */ color: rgb(29, 34, 119);
/* oklch */ color: oklch(31.3% 0.142 272.3);

Tailwind

colors: {
  custom: {
    50: '#685d9f',
    500: '#1d2277',
    950: '#000000',
  },
}

SCSS

$custom: #1d2277;
$custom-light: #685d9f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2277",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 119
  },
  "hsl": {
    "h": 236.667,
    "s": 60.811,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31328,
    "c": 0.14175,
    "h": 272.3
  },
  "luminance": 0.02737
}

Semantic roles & 50–950 ramp

primary

#1D2277

secondary

#ABA545

accent

#DB44E4

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1D2277

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

Preview Lab → · Contrast checker → · Palette generator →