#1C5CB3#1C5CB3

#1C5CB3 is a mid, vivid cyan. Relative luminance 0.112; OKLCH L 48.5% C 0.152 H 257.7°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#1C5CB3
RGB	rgb(28, 92, 179)
HSL	hsl(215, 73%, 41%)
HSV	hsv(215, 84%, 70%)
CMYK	cmyk(84.4%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(39.84, 13.17, -51.74)
CIE-LCH	lch(39.84, 53.39, 284.28°)
OKLab	oklab(48.54% -0.0325 -0.1489)
OKLCH	oklch(48.54% 0.152 257.7)
XYZ	xyz(12.4397, 11.1543, 44.1364)
Luminance	0.1116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5CB3 #B3731C

analogous

#1CA7B3 #1C5CB3 #281CB3

triadic

#1C5CB3 #B31C5C #5CB31C

tetradic

#1C5CB3 #B31CA7 #B3731C #1CB328

square

#1C5CB3 #B31CA7 #B3731C #1CB328

split-complementary

#1C5CB3 #B3281C #A7B31C

monochromatic

#0B2649 #14417E #1C5CB3 #2E79DE #639BE7

Accessibility & contrast

On white

6.50

#1C5CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#1C5CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5CB3

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5CB3	#FFFFFF	#000000	##FFFFFF
##1C5CB3	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2965B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1c5cb3;
/* rgb */ color: rgb(28, 92, 179);
/* oklch */ color: oklch(48.5% 0.152 257.7);

Tailwind

colors: {
  custom: {
    50: '#7389ca',
    500: '#1c5cb3',
    950: '#000000',
  },
}

SCSS

$custom: #1c5cb3;
$custom-light: #7389ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5cb3",
  "rgb": {
    "r": 28,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 214.57,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.48535,
    "c": 0.15238,
    "h": 257.7
  },
  "luminance": 0.11156
}

Semantic roles & 50–950 ramp

primary

#1C5CB3

secondary

#CB9E5F

accent

#A238F0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1C5CB3

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

Preview Lab → · Contrast checker → · Palette generator →