#1537A0#1537A0

#1537A0 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.0% C 0.174 H 265.0°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#1537A0
RGB	rgb(21, 55, 160)
HSL	hsl(225, 77%, 35%)
HSV	hsv(225, 87%, 63%)
CMYK	cmyk(86.9%, 65.6%, 0%, 37.3%)
CIE-LAB	lab(27.92, 29.97, -59.79)
CIE-LCH	lch(27.92, 66.88, 296.62°)
OKLab	oklab(39.01% -0.0152 -0.1733)
OKLCH	oklch(39.01% 0.174 265)
XYZ	xyz(8.0184, 5.4289, 33.8762)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1537A0 #A07E15

analogous

#157CA0 #1537A0 #3915A0

triadic

#1537A0 #A01537 #37A015

tetradic

#1537A0 #A0157C #A07E15 #15A039

square

#1537A0 #A0157C #A07E15 #15A039

split-complementary

#1537A0 #A03915 #7CA015

monochromatic

#071234 #0E246A #1537A0 #1C4AD6 #486FE7

Accessibility & contrast

On white

10.07

#1537A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1537A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1537A0

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1537A0	#FFFFFF	#000000	##FFFFFF
##1537A0	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A3

Deuteranopia (green-blind)

#003C9E

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1537a0;
/* rgb */ color: rgb(21, 55, 160);
/* oklch */ color: oklch(39.0% 0.174 265.0);

Tailwind

colors: {
  custom: {
    50: '#6f6dbd',
    500: '#1537a0',
    950: '#000000',
  },
}

SCSS

$custom: #1537a0;
$custom-light: #6f6dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1537a0",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 160
  },
  "hsl": {
    "h": 225.324,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39012,
    "c": 0.17393,
    "h": 265
  },
  "luminance": 0.0543
}

Semantic roles & 50–950 ramp

primary

#1537A0

secondary

#C8A949

accent

#C534F3

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1537A0

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

Preview Lab → · Contrast checker → · Palette generator →