#1D52A1#1D52A1

#1D52A1 is a dark, vivid blue. Relative luminance 0.089; OKLCH L 45.0% C 0.140 H 258.7°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#1D52A1
RGB	rgb(29, 82, 161)
HSL	hsl(216, 69%, 37%)
HSV	hsv(216, 82%, 63%)
CMYK	cmyk(82%, 49.1%, 0%, 36.9%)
CIE-LAB	lab(35.73, 12.72, -47.68)
CIE-LCH	lch(35.73, 49.35, 284.93°)
OKLab	oklab(44.99% -0.0273 -0.1371)
OKLCH	oklch(44.99% 0.14 258.7)
XYZ	xyz(9.9547, 8.8678, 34.8983)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D52A1 #A16C1D

analogous

#1D94A1 #1D52A1 #2A1DA1

triadic

#1D52A1 #A11D52 #52A11D

tetradic

#1D52A1 #A11D94 #A16C1D #1DA12A

square

#1D52A1 #A11D94 #A16C1D #1DA12A

split-complementary

#1D52A1 #A12A1D #94A11D

monochromatic

#0A1D39 #14386D #1D52A1 #266CD5 #588FE1

Accessibility & contrast

On white

7.57

#1D52A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#1D52A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D52A1

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D52A1	#FFFFFF	#000000	##FFFFFF
##1D52A1	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245AA4

Deuteranopia (green-blind)

#004E9F

Tritanopia (blue-blind)

#006572

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d52a1;
/* rgb */ color: rgb(29, 82, 161);
/* oklch */ color: oklch(45.0% 0.140 258.7);

Tailwind

colors: {
  custom: {
    50: '#7082bd',
    500: '#1d52a1',
    950: '#000000',
  },
}

SCSS

$custom: #1d52a1;
$custom-light: #7082bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d52a1",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 161
  },
  "hsl": {
    "h": 215.909,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.4499,
    "c": 0.13983,
    "h": 258.7
  },
  "luminance": 0.08869
}

Semantic roles & 50–950 ramp

primary

#1D52A1

secondary

#C49855

accent

#A53CEC

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D52A1

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

Preview Lab → · Contrast checker → · Palette generator →