#1D4BA0#1D4BA0

#1D4BA0 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.4% C 0.147 H 261.3°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D4BA0
RGB	rgb(29, 75, 160)
HSL	hsl(219, 69%, 37%)
HSV	hsv(219, 82%, 63%)
CMYK	cmyk(81.9%, 53.1%, 0%, 37.3%)
CIE-LAB	lab(33.63, 17.03, -50.48)
CIE-LCH	lch(33.63, 53.28, 288.65°)
OKLab	oklab(43.36% -0.0222 -0.1455)
OKLCH	oklch(43.36% 0.147 261.3)
XYZ	xyz(9.3656, 7.8303, 34.2687)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4BA0 #A0721D

analogous

#1D8DA0 #1D4BA0 #301DA0

triadic

#1D4BA0 #A01D4B #4BA01D

tetradic

#1D4BA0 #A01D8D #A0721D #1DA030

square

#1D4BA0 #A01D8D #A0721D #1DA030

split-complementary

#1D4BA0 #A0301D #8DA01D

monochromatic

#0A1A38 #14336C #1D4BA0 #2663D4 #5787E1

Accessibility & contrast

On white

8.18

#1D4BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1D4BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4BA0

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4BA0	#FFFFFF	#000000	##FFFFFF
##1D4BA0	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D55A3

Deuteranopia (green-blind)

#00499E

Tritanopia (blue-blind)

#00606E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1d4ba0;
/* rgb */ color: rgb(29, 75, 160);
/* oklch */ color: oklch(43.4% 0.147 261.3);

Tailwind

colors: {
  custom: {
    50: '#707cbd',
    500: '#1d4ba0',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ba0;
$custom-light: #707cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ba0",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 160
  },
  "hsl": {
    "h": 218.931,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.43359,
    "c": 0.14718,
    "h": 261.3
  },
  "luminance": 0.07831
}

Semantic roles & 50–950 ramp

primary

#1D4BA0

secondary

#C49D55

accent

#AE3CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4BA0

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

Preview Lab → · Contrast checker → · Palette generator →