#1D306C#1D306C

#1D306C is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.1% C 0.107 H 267.1°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#1D306C
RGB	rgb(29, 48, 108)
HSL	hsl(226, 58%, 27%)
HSV	hsv(226, 73%, 42%)
CMYK	cmyk(73.1%, 55.6%, 0%, 57.6%)
CIE-LAB	lab(21.79, 14.85, -37.27)
CIE-LCH	lch(21.79, 40.12, 291.72°)
OKLab	oklab(33.12% -0.0054 -0.1072)
OKLCH	oklch(33.12% 0.107 267.1)
XYZ	xyz(4.2695, 3.4574, 14.6268)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D306C #6C591D

analogous

#1D586C #1D306C #321D6C

triadic

#1D306C #6C1D30 #306C1D

tetradic

#1D306C #6C1D58 #6C591D #1D6C32

square

#1D306C #6C1D58 #6C591D #1D6C32

split-complementary

#1D306C #6C321D #586C1D

monochromatic

#060B18 #101B3C #1D306C #2A459C #395CCA

Accessibility & contrast

On white

12.41

#1D306C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D306C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D306C

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D306C	#FFFFFF	#000000	##FFFFFF
##1D306C	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07386E

Deuteranopia (green-blind)

#00316B

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d306c;
/* rgb */ color: rgb(29, 48, 108);
/* oklch */ color: oklch(33.1% 0.107 267.1);

Tailwind

colors: {
  custom: {
    50: '#646797',
    500: '#1d306c',
    950: '#000000',
  },
}

SCSS

$custom: #1d306c;
$custom-light: #646797;
$custom-dark: #000000;

JSON

{
  "hex": "#1d306c",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 108
  },
  "hsl": {
    "h": 225.57,
    "s": 57.664,
    "l": 26.863
  },
  "oklch": {
    "l": 0.33121,
    "c": 0.1073,
    "h": 267.1
  },
  "luminance": 0.03458
}

Semantic roles & 50–950 ramp

primary

#1D306C

secondary

#A18A44

accent

#BC47E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D306C

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

Preview Lab → · Contrast checker → · Palette generator →