#1C5BB0#1C5BB0

#1C5BB0 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 48.1% C 0.150 H 257.5°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C5BB0
RGB	rgb(28, 91, 176)
HSL	hsl(214, 73%, 40%)
HSV	hsv(214, 84%, 69%)
CMYK	cmyk(84.1%, 48.3%, 0%, 31%)
CIE-LAB	lab(39.35, 12.64, -50.77)
CIE-LCH	lch(39.35, 52.32, 283.98°)
OKLab	oklab(48.09% -0.0323 -0.146)
OKLCH	oklch(48.09% 0.15 257.5)
XYZ	xyz(12.0535, 10.8621, 42.5272)
Luminance	0.1086 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5BB0 #B0711C

analogous

#1CA5B0 #1C5BB0 #271CB0

triadic

#1C5BB0 #B01C5B #5BB01C

tetradic

#1C5BB0 #B01CA5 #B0711C #1CB027

square

#1C5BB0 #B01CA5 #B0711C #1CB027

split-complementary

#1C5BB0 #B0271C #A5B01C

monochromatic

#0B2446 #14407B #1C5BB0 #2C77DD #6199E6

Accessibility & contrast

On white

6.62

#1C5BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#1C5BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5BB0

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5BB0	#FFFFFF	#000000	##FFFFFF
##1C5BB0	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A64B3

Deuteranopia (green-blind)

#0057AE

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1c5bb0;
/* rgb */ color: rgb(28, 91, 176);
/* oklch */ color: oklch(48.1% 0.150 257.5);

Tailwind

colors: {
  custom: {
    50: '#7388c8',
    500: '#1c5bb0',
    950: '#000000',
  },
}

SCSS

$custom: #1c5bb0;
$custom-light: #7388c8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5bb0",
  "rgb": {
    "r": 28,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 214.459,
    "s": 72.549,
    "l": 40
  },
  "oklch": {
    "l": 0.48092,
    "c": 0.14956,
    "h": 257.5
  },
  "luminance": 0.10864
}

Semantic roles & 50–950 ramp

primary

#1C5BB0

secondary

#CA9C5E

accent

#A139EF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1C5BB0

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

Preview Lab → · Contrast checker → · Palette generator →