#1D4299#1D4299

#1D4299 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.8% C 0.149 H 263.7°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#1D4299
RGB	rgb(29, 66, 153)
HSL	hsl(222, 68%, 36%)
HSV	hsv(222, 81%, 60%)
CMYK	cmyk(81%, 56.9%, 0%, 40%)
CIE-LAB	lab(30.54, 20.37, -51.26)
CIE-LCH	lch(30.54, 55.16, 291.67°)
OKLab	oklab(40.85% -0.0164 -0.148)
OKLCH	oklch(40.85% 0.149 263.7)
XYZ	xyz(8.2026, 6.4566, 30.9447)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4299 #99741D

analogous

#1D8099 #1D4299 #361D99

triadic

#1D4299 #991D42 #42991D

tetradic

#1D4299 #991D80 #99741D #1D9936

square

#1D4299 #991D80 #99741D #1D9936

split-complementary

#1D4299 #99361D #80991D

monochromatic

#091632 #132C66 #1D4299 #2758CC #527CDE

Accessibility & contrast

On white

9.16

#1D4299 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1D4299 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4299

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4299	#FFFFFF	#000000	##FFFFFF
##1D4299	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#005867

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d4299;
/* rgb */ color: rgb(29, 66, 153);
/* oklch */ color: oklch(40.8% 0.149 263.7);

Tailwind

colors: {
  custom: {
    50: '#6e75b8',
    500: '#1d4299',
    950: '#000000',
  },
}

SCSS

$custom: #1d4299;
$custom-light: #6e75b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4299",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 153
  },
  "hsl": {
    "h": 222.097,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40847,
    "c": 0.14887,
    "h": 263.7
  },
  "luminance": 0.06458
}

Semantic roles & 50–950 ramp

primary

#1D4299

secondary

#C1A051

accent

#B73DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D4299

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

Preview Lab → · Contrast checker → · Palette generator →