#1D52B3#1D52B3

#1D52B3 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.4% C 0.164 H 261.3°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#1D52B3
RGB	rgb(29, 82, 179)
HSL	hsl(219, 72%, 41%)
HSV	hsv(219, 84%, 70%)
CMYK	cmyk(83.8%, 54.2%, 0%, 29.8%)
CIE-LAB	lab(37.02, 19.89, -56.30)
CIE-LCH	lch(37.02, 59.71, 289.46°)
OKLab	oklab(46.39% -0.025 -0.1625)
OKLCH	oklch(46.39% 0.164 261.3)
XYZ	xyz(11.6577, 9.5490, 43.8678)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D52B3 #B37E1D

analogous

#1D9DB3 #1D52B3 #331DB3

triadic

#1D52B3 #B31D52 #52B31D

tetradic

#1D52B3 #B31D9D #B37E1D #1DB333

square

#1D52B3 #B31D9D #B37E1D #1DB333

split-complementary

#1D52B3 #B3331D #9DB31D

monochromatic

#0C224A #143A7E #1D52B3 #306DDD #6492E6

Accessibility & contrast

On white

7.22

#1D52B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1D52B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D52B3

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D52B3	#FFFFFF	#000000	##FFFFFF
##1D52B3	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1d52b3;
/* rgb */ color: rgb(29, 82, 179);
/* oklch */ color: oklch(46.4% 0.164 261.3);

Tailwind

colors: {
  custom: {
    50: '#7481ca',
    500: '#1d52b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d52b3;
$custom-light: #7481ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d52b3",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 179
  },
  "hsl": {
    "h": 218.8,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.46387,
    "c": 0.16439,
    "h": 261.3
  },
  "luminance": 0.0955
}

Semantic roles & 50–950 ramp

primary

#1D52B3

secondary

#CBA561

accent

#AF39EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1D52B3

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

Preview Lab → · Contrast checker → · Palette generator →