#1D4FA0#1D4FA0

#1D4FA0 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.142 H 259.8°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D4FA0
RGB	rgb(29, 79, 160)
HSL	hsl(217, 69%, 37%)
HSV	hsv(217, 82%, 63%)
CMYK	cmyk(81.9%, 50.6%, 0%, 37.3%)
CIE-LAB	lab(34.78, 14.33, -48.61)
CIE-LCH	lch(34.78, 50.68, 286.43°)
OKLab	oklab(44.24% -0.0252 -0.1399)
OKLCH	oklch(44.24% 0.142 259.8)
XYZ	xyz(9.6455, 8.3901, 34.3620)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4FA0 #A06E1D

analogous

#1D91A0 #1D4FA0 #2C1DA0

triadic

#1D4FA0 #A01D4F #4FA01D

tetradic

#1D4FA0 #A01D91 #A06E1D #1DA02C

square

#1D4FA0 #A01D91 #A06E1D #1DA02C

split-complementary

#1D4FA0 #A02C1D #91A01D

monochromatic

#0A1C38 #14356C #1D4FA0 #2669D4 #578BE1

Accessibility & contrast

On white

7.84

#1D4FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1D4FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4FA0

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4FA0	#FFFFFF	#000000	##FFFFFF
##1D4FA0	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D58A3

Deuteranopia (green-blind)

#004C9E

Tritanopia (blue-blind)

#006370

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d4fa0;
/* rgb */ color: rgb(29, 79, 160);
/* oklch */ color: oklch(44.2% 0.142 259.8);

Tailwind

colors: {
  custom: {
    50: '#6f7fbd',
    500: '#1d4fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1d4fa0;
$custom-light: #6f7fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4fa0",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 160
  },
  "hsl": {
    "h": 217.099,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.44241,
    "c": 0.14216,
    "h": 259.8
  },
  "luminance": 0.08391
}

Semantic roles & 50–950 ramp

primary

#1D4FA0

secondary

#C49A55

accent

#A93CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D4FA0

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

Preview Lab → · Contrast checker → · Palette generator →