#1D53A0#1D53A0

#1D53A0 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.1% C 0.137 H 258.1°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D53A0
RGB	rgb(29, 83, 160)
HSL	hsl(215, 69%, 37%)
HSV	hsv(215, 82%, 63%)
CMYK	cmyk(81.9%, 48.1%, 0%, 37.3%)
CIE-LAB	lab(35.95, 11.65, -46.72)
CIE-LCH	lch(35.95, 48.15, 284.00°)
OKLab	oklab(45.14% -0.0283 -0.1343)
OKLCH	oklch(45.14% 0.137 258.1)
XYZ	xyz(9.9428, 8.9846, 34.4611)
Luminance	0.0899 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D53A0 #A06A1D

analogous

#1D95A0 #1D53A0 #281DA0

triadic

#1D53A0 #A01D53 #53A01D

tetradic

#1D53A0 #A01D95 #A06A1D #1DA028

square

#1D53A0 #A01D95 #A06A1D #1DA028

split-complementary

#1D53A0 #A0281D #95A01D

monochromatic

#0A1D38 #14386C #1D53A0 #266ED4 #5790E1

Accessibility & contrast

On white

7.51

#1D53A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1D53A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D53A0

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D53A0	#FFFFFF	#000000	##FFFFFF
##1D53A0	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285BA3

Deuteranopia (green-blind)

#004F9E

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d53a0;
/* rgb */ color: rgb(29, 83, 160);
/* oklch */ color: oklch(45.1% 0.137 258.1);

Tailwind

colors: {
  custom: {
    50: '#6f82bd',
    500: '#1d53a0',
    950: '#000000',
  },
}

SCSS

$custom: #1d53a0;
$custom-light: #6f82bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d53a0",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 160
  },
  "hsl": {
    "h": 215.267,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.45142,
    "c": 0.13722,
    "h": 258.1
  },
  "luminance": 0.08986
}

Semantic roles & 50–950 ramp

primary

#1D53A0

secondary

#C49655

accent

#A33CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D53A0

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

Preview Lab → · Contrast checker → · Palette generator →