#1D52A6#1D52A6

#1D52A6 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.147 H 259.6°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D52A6
RGB	rgb(29, 82, 166)
HSL	hsl(217, 70%, 38%)
HSV	hsv(217, 83%, 65%)
CMYK	cmyk(82.5%, 50.6%, 0%, 34.9%)
CIE-LAB	lab(36.08, 14.72, -50.11)
CIE-LCH	lch(36.08, 52.23, 286.37°)
OKLab	oklab(45.37% -0.0266 -0.1443)
OKLCH	oklch(45.37% 0.147 259.6)
XYZ	xyz(10.4044, 9.0477, 37.2670)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D52A6 #A6711D

analogous

#1D96A6 #1D52A6 #2C1DA6

triadic

#1D52A6 #A61D52 #52A61D

tetradic

#1D52A6 #A61D96 #A6711D #1DA62C

square

#1D52A6 #A61D96 #A6711D #1DA62C

split-complementary

#1D52A6 #A62C1D #96A61D

monochromatic

#0B1F3E #143872 #1D52A6 #276CD9 #5B8FE2

Accessibility & contrast

On white

7.47

#1D52A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#1D52A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D52A6

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D52A6	#FFFFFF	#000000	##FFFFFF
##1D52A6	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5BA9

Deuteranopia (green-blind)

#004FA4

Tritanopia (blue-blind)

#006674

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d52a6;
/* rgb */ color: rgb(29, 82, 166);
/* oklch */ color: oklch(45.4% 0.147 259.6);

Tailwind

colors: {
  custom: {
    50: '#7181c1',
    500: '#1d52a6',
    950: '#000000',
  },
}

SCSS

$custom: #1d52a6;
$custom-light: #7181c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d52a6",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 166
  },
  "hsl": {
    "h": 216.788,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.45367,
    "c": 0.14671,
    "h": 259.6
  },
  "luminance": 0.09049
}

Semantic roles & 50–950 ramp

primary

#1D52A6

secondary

#C69C59

accent

#A83BED

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D52A6

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

Preview Lab → · Contrast checker → · Palette generator →