#1B76B3#1B76B3

#1B76B3 is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 54.5% C 0.125 H 244.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B76B3
RGB	rgb(27, 118, 179)
HSL	hsl(204, 74%, 40%)
HSV	hsv(204, 85%, 70%)
CMYK	cmyk(84.9%, 34.1%, 0%, 29.8%)
CIE-LAB	lab(47.55, -3.34, -39.43)
CIE-LCH	lch(47.55, 39.57, 265.16°)
OKLab	oklab(54.55% -0.054 -0.1122)
OKLCH	oklch(54.55% 0.125 244.3)
XYZ	xyz(15.0639, 16.4426, 45.0189)
Luminance	0.1645 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B76B3 #B3581B

analogous

#1BB3A4 #1B76B3 #1B2AB3

triadic

#1B76B3 #B31B76 #76B31B

tetradic

#1B76B3 #A41BB3 #B3581B #2AB31B

square

#1B76B3 #A41BB3 #B3581B #2AB31B

split-complementary

#1B76B3 #B31B2A #B3A41B

monochromatic

#0B3049 #13537E #1B76B3 #2C97DF #61B1E7

Accessibility & contrast

On white

4.90

#1B76B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#1B76B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B76B3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B76B3	#FFFFFF	#000000	##FFFFFF
##1B76B3	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5978B6

Deuteranopia (green-blind)

#446BB2

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #1b76b3;
/* rgb */ color: rgb(27, 118, 179);
/* oklch */ color: oklch(54.5% 0.125 244.3);

Tailwind

colors: {
  custom: {
    50: '#739dca',
    500: '#1b76b3',
    950: '#000000',
  },
}

SCSS

$custom: #1b76b3;
$custom-light: #739dca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b76b3",
  "rgb": {
    "r": 27,
    "g": 118,
    "b": 179
  },
  "hsl": {
    "h": 204.079,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.54547,
    "c": 0.12453,
    "h": 244.3
  },
  "luminance": 0.16445
}

Semantic roles & 50–950 ramp

primary

#1B76B3

secondary

#CC8A5E

accent

#8237F0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #1B76B3

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

Preview Lab → · Contrast checker → · Palette generator →