#1D30A8#1D30A8

#1D30A8 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.190 H 267.9°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#1D30A8
RGB	rgb(29, 48, 168)
HSL	hsl(232, 71%, 39%)
HSV	hsv(232, 83%, 66%)
CMYK	cmyk(82.7%, 71.4%, 0%, 34.1%)
CIE-LAB	lab(27.30, 38.08, -65.64)
CIE-LCH	lch(27.30, 75.89, 300.12°)
OKLab	oklab(38.88% -0.0068 -0.1902)
OKLCH	oklch(38.88% 0.19 267.9)
XYZ	xyz(8.6291, 5.2012, 37.5873)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D30A8 #A8951D

analogous

#1D75A8 #1D30A8 #501DA8

triadic

#1D30A8 #A81D30 #30A81D

tetradic

#1D30A8 #A81D75 #A8951D #1DA850

square

#1D30A8 #A81D75 #A8951D #1DA850

split-complementary

#1D30A8 #A8501D #75A81D

monochromatic

#0B1240 #142174 #1D30A8 #2841DA #5C6FE3

Accessibility & contrast

On white

10.29

#1D30A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1D30A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D30A8

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D30A8	#FFFFFF	#000000	##FFFFFF
##1D30A8	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AC

Deuteranopia (green-blind)

#003AA6

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d30a8;
/* rgb */ color: rgb(29, 48, 168);
/* oklch */ color: oklch(38.9% 0.190 267.9);

Tailwind

colors: {
  custom: {
    50: '#7469c3',
    500: '#1d30a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d30a8;
$custom-light: #7469c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d30a8",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 168
  },
  "hsl": {
    "h": 231.799,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38875,
    "c": 0.19035,
    "h": 267.9
  },
  "luminance": 0.05202
}

Semantic roles & 50–950 ramp

primary

#1D30A8

secondary

#C7B85A

accent

#D53AED

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #1D30A8

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

Preview Lab → · Contrast checker → · Palette generator →