#1D2863#1D2863

#1D2863 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.6% C 0.105 H 270.9°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D2863
RGB	rgb(29, 40, 99)
HSL	hsl(231, 55%, 25%)
HSV	hsv(231, 71%, 39%)
CMYK	cmyk(70.7%, 59.6%, 0%, 61.2%)
CIE-LAB	lab(18.71, 17.00, -36.40)
CIE-LCH	lch(18.71, 40.17, 295.03°)
OKLab	oklab(30.58% 0.0017 -0.1047)
OKLCH	oklch(30.58% 0.105 270.9)
XYZ	xyz(3.5169, 2.6793, 12.1338)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2863 #63581D

analogous

#1D4B63 #1D2863 #351D63

triadic

#1D2863 #631D28 #28631D

tetradic

#1D2863 #631D4B #63581D #1D6335

square

#1D2863 #631D4B #63581D #1D6335

split-complementary

#1D2863 #63351D #4B631D

monochromatic

#070A18 #0F1534 #1D2863 #2B3B92 #394EC2

Accessibility & contrast

On white

13.67

#1D2863 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1D2863 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2863

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2863	#FFFFFF	#000000	##FFFFFF
##1D2863	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003165

Deuteranopia (green-blind)

#002A62

Tritanopia (blue-blind)

#003641

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d2863;
/* rgb */ color: rgb(29, 40, 99);
/* oklch */ color: oklch(30.6% 0.105 270.9);

Tailwind

colors: {
  custom: {
    50: '#636190',
    500: '#1d2863',
    950: '#000000',
  },
}

SCSS

$custom: #1d2863;
$custom-light: #636190;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2863",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 99
  },
  "hsl": {
    "h": 230.571,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.30575,
    "c": 0.10472,
    "h": 270.9
  },
  "luminance": 0.0268
}

Semantic roles & 50–950 ramp

primary

#1D2863

secondary

#988B44

accent

#C74ADE

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #1D2863

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

Preview Lab → · Contrast checker → · Palette generator →