#1C5DB4#1C5DB4

#1C5DB4 is a mid, vivid cyan. Relative luminance 0.114; OKLCH L 48.8% C 0.153 H 257.5°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C5DB4
RGB	rgb(28, 93, 180)
HSL	hsl(214, 73%, 41%)
HSV	hsv(214, 84%, 71%)
CMYK	cmyk(84.4%, 48.3%, 0%, 29.4%)
CIE-LAB	lab(40.20, 12.91, -51.75)
CIE-LCH	lch(40.20, 53.34, 284.01°)
OKLab	oklab(48.83% -0.0331 -0.1489)
OKLCH	oklch(48.83% 0.153 257.5)
XYZ	xyz(12.6284, 11.3693, 44.7001)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5DB4 #B4731C

analogous

#1CA9B4 #1C5DB4 #271CB4

triadic

#1C5DB4 #B41C5D #5DB41C

tetradic

#1C5DB4 #B41CA9 #B4731C #1CB427

square

#1C5DB4 #B41CA9 #B4731C #1CB427

split-complementary

#1C5DB4 #B4271C #A9B41C

monochromatic

#0C264A #14427F #1C5DB4 #2F7ADF #649CE7

Accessibility & contrast

On white

6.41

#1C5DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1C5DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5DB4

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5DB4	#FFFFFF	#000000	##FFFFFF
##1C5DB4	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A66B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1c5db4;
/* rgb */ color: rgb(28, 93, 180);
/* oklch */ color: oklch(48.8% 0.153 257.5);

Tailwind

colors: {
  custom: {
    50: '#748acb',
    500: '#1c5db4',
    950: '#000000',
  },
}

SCSS

$custom: #1c5db4;
$custom-light: #748acb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5db4",
  "rgb": {
    "r": 28,
    "g": 93,
    "b": 180
  },
  "hsl": {
    "h": 214.342,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48831,
    "c": 0.15252,
    "h": 257.5
  },
  "luminance": 0.11371
}

Semantic roles & 50–950 ramp

primary

#1C5DB4

secondary

#CC9E60

accent

#A138F0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1C5DB4

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

Preview Lab → · Contrast checker → · Palette generator →