#1D50A5#1D50A5

#1D50A5 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.8% C 0.148 H 260.2°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#1D50A5
RGB	rgb(29, 80, 165)
HSL	hsl(218, 70%, 38%)
HSV	hsv(218, 82%, 65%)
CMYK	cmyk(82.4%, 51.5%, 0%, 35.3%)
CIE-LAB	lab(35.43, 15.66, -50.56)
CIE-LCH	lch(35.43, 52.93, 287.21°)
OKLab	oklab(44.85% -0.0252 -0.1456)
OKLCH	oklch(44.85% 0.148 260.2)
XYZ	xyz(10.1644, 8.7139, 36.7363)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D50A5 #A5721D

analogous

#1D94A5 #1D50A5 #2E1DA5

triadic

#1D50A5 #A51D50 #50A51D

tetradic

#1D50A5 #A51D94 #A5721D #1DA52E

square

#1D50A5 #A51D94 #A5721D #1DA52E

split-complementary

#1D50A5 #A52E1D #94A51D

monochromatic

#0B1E3D #143771 #1D50A5 #2669D9 #5A8DE2

Accessibility & contrast

On white

7.66

#1D50A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1D50A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D50A5

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D50A5	#FFFFFF	#000000	##FFFFFF
##1D50A5	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#185AA8

Deuteranopia (green-blind)

#004EA3

Tritanopia (blue-blind)

#006573

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d50a5;
/* rgb */ color: rgb(29, 80, 165);
/* oklch */ color: oklch(44.8% 0.148 260.2);

Tailwind

colors: {
  custom: {
    50: '#7180c0',
    500: '#1d50a5',
    950: '#000000',
  },
}

SCSS

$custom: #1d50a5;
$custom-light: #7180c0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d50a5",
  "rgb": {
    "r": 29,
    "g": 80,
    "b": 165
  },
  "hsl": {
    "h": 217.5,
    "s": 70.103,
    "l": 38.039
  },
  "oklch": {
    "l": 0.44848,
    "c": 0.14782,
    "h": 260.2
  },
  "luminance": 0.08715
}

Semantic roles & 50–950 ramp

primary

#1D50A5

secondary

#C69D58

accent

#AA3BED

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D50A5

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

Preview Lab → · Contrast checker → · Palette generator →