#1D48A7#1D48A7

#1D48A7 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.161 H 263.0°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D48A7
RGB	rgb(29, 72, 167)
HSL	hsl(221, 70%, 38%)
HSV	hsv(221, 83%, 65%)
CMYK	cmyk(82.6%, 56.9%, 0%, 34.5%)
CIE-LAB	lab(33.32, 21.86, -55.18)
CIE-LCH	lch(33.32, 59.35, 291.61°)
OKLab	oklab(43.29% -0.0194 -0.1594)
OKLCH	oklch(43.29% 0.161 263)
XYZ	xyz(9.7966, 7.6848, 37.5187)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D48A7 #A77C1D

analogous

#1D8DA7 #1D48A7 #371DA7

triadic

#1D48A7 #A71D48 #48A71D

tetradic

#1D48A7 #A71D8D #A77C1D #1DA737

square

#1D48A7 #A71D8D #A77C1D #1DA737

split-complementary

#1D48A7 #A7371D #8DA71D

monochromatic

#0B1B3F #143273 #1D48A7 #285FDA #5C86E3

Accessibility & contrast

On white

8.28

#1D48A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1D48A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D48A7

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D48A7	#FFFFFF	#000000	##FFFFFF
##1D48A7	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AA

Deuteranopia (green-blind)

#0048A5

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d48a7;
/* rgb */ color: rgb(29, 72, 167);
/* oklch */ color: oklch(43.3% 0.161 263.0);

Tailwind

colors: {
  custom: {
    50: '#727ac2',
    500: '#1d48a7',
    950: '#000000',
  },
}

SCSS

$custom: #1d48a7;
$custom-light: #727ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d48a7",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 167
  },
  "hsl": {
    "h": 221.304,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43293,
    "c": 0.16057,
    "h": 263
  },
  "luminance": 0.07686
}

Semantic roles & 50–950 ramp

primary

#1D48A7

secondary

#C7A559

accent

#B63BED

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D48A7

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

Preview Lab → · Contrast checker → · Palette generator →