#1B53A0#1B53A0

#1B53A0 is a mid, vivid cyan. Relative luminance 0.090; OKLCH L 45.1% C 0.138 H 257.7°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B53A0
RGB	rgb(27, 83, 160)
HSL	hsl(215, 71%, 37%)
HSV	hsv(215, 83%, 63%)
CMYK	cmyk(83.1%, 48.1%, 0%, 37.3%)
CIE-LAB	lab(35.90, 11.45, -46.81)
CIE-LCH	lch(35.90, 48.19, 283.75°)
OKLab	oklab(45.08% -0.0294 -0.1346)
OKLCH	oklch(45.08% 0.138 257.7)
XYZ	xyz(9.8881, 8.9564, 34.4585)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B53A0 #A0681B

analogous

#1B96A0 #1B53A0 #261BA0

triadic

#1B53A0 #A01B53 #53A01B

tetradic

#1B53A0 #A01B96 #A0681B #1BA026

square

#1B53A0 #A01B96 #A0681B #1BA026

split-complementary

#1B53A0 #A0261B #96A01B

monochromatic

#091D37 #12386C #1B53A0 #246ED4 #538FE2

Accessibility & contrast

On white

7.52

#1B53A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1B53A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B53A0

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B53A0	#FFFFFF	#000000	##FFFFFF
##1B53A0	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275BA3

Deuteranopia (green-blind)

#004F9E

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b53a0;
/* rgb */ color: rgb(27, 83, 160);
/* oklch */ color: oklch(45.1% 0.138 257.7);

Tailwind

colors: {
  custom: {
    50: '#6f82bd',
    500: '#1b53a0',
    950: '#000000',
  },
}

SCSS

$custom: #1b53a0;
$custom-light: #6f82bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b53a0",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 160
  },
  "hsl": {
    "h": 214.737,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45084,
    "c": 0.13774,
    "h": 257.7
  },
  "luminance": 0.08958
}

Semantic roles & 50–950 ramp

primary

#1B53A0

secondary

#C59452

accent

#A23AEE

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1B53A0

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

Preview Lab → · Contrast checker → · Palette generator →