#1D2587#1D2587

#1D2587 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.5% C 0.160 H 270.7°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#1D2587
RGB	rgb(29, 37, 135)
HSL	hsl(235, 65%, 32%)
HSV	hsv(235, 79%, 53%)
CMYK	cmyk(78.5%, 72.6%, 0%, 47.1%)
CIE-LAB	lab(21.33, 32.95, -55.21)
CIE-LCH	lch(21.33, 64.29, 300.83°)
OKLab	oklab(33.54% 0.0019 -0.1598)
OKLCH	oklch(33.54% 0.16 270.7)
XYZ	xyz(5.5399, 3.3330, 23.2683)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2587 #877F1D

analogous

#1D5A87 #1D2587 #4A1D87

triadic

#1D2587 #871D25 #25871D

tetradic

#1D2587 #871D5A #877F1D #1D874A

square

#1D2587 #871D5A #877F1D #1D874A

split-complementary

#1D2587 #874A1D #5A871D

monochromatic

#070922 #121755 #1D2587 #2833B9 #4752D7

Accessibility & contrast

On white

12.60

#1D2587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1D2587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2587

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2587	#FFFFFF	#000000	##FFFFFF
##1D2587	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388A

Deuteranopia (green-blind)

#002E85

Tritanopia (blue-blind)

#004053

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1d2587;
/* rgb */ color: rgb(29, 37, 135);
/* oklch */ color: oklch(33.5% 0.160 270.7);

Tailwind

colors: {
  custom: {
    50: '#6c60ab',
    500: '#1d2587',
    950: '#000000',
  },
}

SCSS

$custom: #1d2587;
$custom-light: #6c60ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2587",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 135
  },
  "hsl": {
    "h": 235.472,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33542,
    "c": 0.15984,
    "h": 270.7
  },
  "luminance": 0.03334
}

Semantic roles & 50–950 ramp

primary

#1D2587

secondary

#B9B146

accent

#DB40E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D2587

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

Preview Lab → · Contrast checker → · Palette generator →