#1C7BB4#1C7BB4

#1C7BB4 is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 55.8% C 0.121 H 241.5°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C7BB4
RGB	rgb(28, 123, 180)
HSL	hsl(203, 73%, 41%)
HSV	hsv(203, 84%, 71%)
CMYK	cmyk(84.4%, 31.7%, 0%, 29.4%)
CIE-LAB	lab(49.14, -5.86, -37.50)
CIE-LCH	lch(49.14, 37.95, 261.11°)
OKLab	oklab(55.82% -0.0578 -0.1065)
OKLCH	oklch(55.82% 0.121 241.5)
XYZ	xyz(15.7968, 17.7061, 45.7562)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C7BB4 #B4551C

analogous

#1CB4A1 #1C7BB4 #1C2FB4

triadic

#1C7BB4 #B41C7B #7BB41C

tetradic

#1C7BB4 #A11CB4 #B4551C #2FB41C

square

#1C7BB4 #A11CB4 #B4551C #2FB41C

split-complementary

#1C7BB4 #B41C2F #B4A11C

monochromatic

#0C334A #14577F #1C7BB4 #2F9DDF #64B6E7

Accessibility & contrast

On white

4.62

#1C7BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#1C7BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #1C7BB4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C7BB4	#FFFFFF	#000000	##FFFFFF
##1C7BB4	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607CB6

Deuteranopia (green-blind)

#4B6FB3

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #1c7bb4;
/* rgb */ color: rgb(28, 123, 180);
/* oklch */ color: oklch(55.8% 0.121 241.5);

Tailwind

colors: {
  custom: {
    50: '#74a1ca',
    500: '#1c7bb4',
    950: '#000000',
  },
}

SCSS

$custom: #1c7bb4;
$custom-light: #74a1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1c7bb4",
  "rgb": {
    "r": 28,
    "g": 123,
    "b": 180
  },
  "hsl": {
    "h": 202.5,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.55824,
    "c": 0.12115,
    "h": 241.5
  },
  "luminance": 0.17708
}

Semantic roles & 50–950 ramp

primary

#1C7BB4

secondary

#CC8860

accent

#7D38F0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #1C7BB4

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

Preview Lab → · Contrast checker → · Palette generator →