#1D3E85#1D3E85

#1D3E85 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.3% C 0.126 H 263.1°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E85
RGB	rgb(29, 62, 133)
HSL	hsl(221, 64%, 32%)
HSV	hsv(221, 78%, 52%)
CMYK	cmyk(78.2%, 53.4%, 0%, 47.8%)
CIE-LAB	lab(27.84, 15.09, -43.33)
CIE-LCH	lch(27.84, 45.88, 289.20°)
OKLab	oklab(38.32% -0.0152 -0.1247)
OKLCH	oklch(38.32% 0.126 263.1)
XYZ	xyz(6.4614, 5.3992, 22.8874)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E85 #85641D

analogous

#1D7285 #1D3E85 #301D85

triadic

#1D3E85 #851D3E #3E851D

tetradic

#1D3E85 #851D72 #85641D #1D8530

square

#1D3E85 #851D72 #85641D #1D8530

split-complementary

#1D3E85 #85301D #72851D

monochromatic

#070F21 #122753 #1D3E85 #2855B7 #4674D7

Accessibility & contrast

On white

10.10

#1D3E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1D3E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E85

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E85	#FFFFFF	#000000	##FFFFFF
##1D3E85	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4788

Deuteranopia (green-blind)

#003D84

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d3e85;
/* rgb */ color: rgb(29, 62, 133);
/* oklch */ color: oklch(38.3% 0.126 263.1);

Tailwind

colors: {
  custom: {
    50: '#6a72a9',
    500: '#1d3e85',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e85;
$custom-light: #6a72a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e85",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 133
  },
  "hsl": {
    "h": 220.962,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38319,
    "c": 0.12563,
    "h": 263.1
  },
  "luminance": 0.054
}

Semantic roles & 50–950 ramp

primary

#1D3E85

secondary

#B89446

accent

#B241E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D3E85

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

Preview Lab → · Contrast checker → · Palette generator →