#1B5EA0#1B5EA0

#1B5EA0 is a mid, vivid cyan. Relative luminance 0.108; OKLCH L 47.6% C 0.125 H 252.1°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B5EA0
RGB	rgb(27, 94, 160)
HSL	hsl(210, 71%, 37%)
HSV	hsv(210, 83%, 63%)
CMYK	cmyk(83.1%, 41.3%, 0%, 37.3%)
CIE-LAB	lab(39.20, 4.23, -41.52)
CIE-LCH	lch(39.20, 41.74, 275.82°)
OKLab	oklab(47.64% -0.0384 -0.1188)
OKLCH	oklch(47.64% 0.125 252.1)
XYZ	xyz(10.7975, 10.7752, 34.7616)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5EA0 #A05D1B

analogous

#1BA0A0 #1B5EA0 #1B1CA0

triadic

#1B5EA0 #A01B5E #5EA01B

tetradic

#1B5EA0 #A01BA0 #A05D1B #1CA01B

square

#1B5EA0 #A01BA0 #A05D1B #1CA01B

split-complementary

#1B5EA0 #A01B1C #A0A01B

monochromatic

#092037 #123F6C #1B5EA0 #247DD4 #539BE2

Accessibility & contrast

On white

6.66

#1B5EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#1B5EA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5EA0

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5EA0	#FFFFFF	#000000	##FFFFFF
##1B5EA0	1.00	6.66	3.16	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E63A3

Deuteranopia (green-blind)

#27579F

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5ea0;
/* rgb */ color: rgb(27, 94, 160);
/* oklch */ color: oklch(47.6% 0.125 252.1);

Tailwind

colors: {
  custom: {
    50: '#6f8bbc',
    500: '#1b5ea0',
    950: '#000000',
  },
}

SCSS

$custom: #1b5ea0;
$custom-light: #6f8bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5ea0",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 160
  },
  "hsl": {
    "h": 209.774,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.47643,
    "c": 0.12484,
    "h": 252.1
  },
  "luminance": 0.10776
}

Semantic roles & 50–950 ramp

primary

#1B5EA0

secondary

#C58B52

accent

#933AEE

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5EA0

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

Preview Lab → · Contrast checker → · Palette generator →