#1D3A7D#1D3A7D

#1D3A7D is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.119 H 263.9°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D3A7D
RGB	rgb(29, 58, 125)
HSL	hsl(222, 62%, 30%)
HSV	hsv(222, 77%, 49%)
CMYK	cmyk(76.8%, 53.6%, 0%, 51%)
CIE-LAB	lab(26.06, 14.64, -41.20)
CIE-LCH	lch(26.06, 43.73, 289.56°)
OKLab	oklab(36.77% -0.0127 -0.1185)
OKLCH	oklch(36.77% 0.119 263.9)
XYZ	xyz(5.7201, 4.7674, 20.0168)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3A7D #7D601D

analogous

#1D6A7D #1D3A7D #301D7D

triadic

#1D3A7D #7D1D3A #3A7D1D

tetradic

#1D3A7D #7D1D6A #7D601D #1D7D30

square

#1D3A7D #7D1D6A #7D601D #1D7D30

split-complementary

#1D3A7D #7D301D #6A7D1D

monochromatic

#060C1A #11234B #1D3A7D #2951AF #416DD3

Accessibility & contrast

On white

10.75

#1D3A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1D3A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3A7D

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3A7D	#FFFFFF	#000000	##FFFFFF
##1D3A7D	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E427F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d3a7d;
/* rgb */ color: rgb(29, 58, 125);
/* oklch */ color: oklch(36.8% 0.119 263.9);

Tailwind

colors: {
  custom: {
    50: '#686fa3',
    500: '#1d3a7d',
    950: '#000000',
  },
}

SCSS

$custom: #1d3a7d;
$custom-light: #686fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3a7d",
  "rgb": {
    "r": 29,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 221.875,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36773,
    "c": 0.11922,
    "h": 263.9
  },
  "luminance": 0.04768
}

Semantic roles & 50–950 ramp

primary

#1D3A7D

secondary

#B19045

accent

#B442E5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D3A7D

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

Preview Lab → · Contrast checker → · Palette generator →