#1C65BC#1C65BC

#1C65BC is a mid, vivid cyan. Relative luminance 0.132; OKLCH L 51.2% C 0.154 H 255.8°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#1C65BC
RGB	rgb(28, 101, 188)
HSL	hsl(213, 74%, 42%)
HSV	hsv(213, 85%, 74%)
CMYK	cmyk(85.1%, 46.3%, 0%, 26.3%)
CIE-LAB	lab(43.04, 10.87, -51.85)
CIE-LCH	lch(43.04, 52.98, 281.84°)
OKLab	oklab(51.19% -0.0376 -0.149)
OKLCH	oklch(51.19% 0.154 255.8)
XYZ	xyz(14.2063, 13.1833, 49.3631)
Luminance	0.1318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C65BC #BC731C

analogous

#1CB5BC #1C65BC #231CBC

triadic

#1C65BC #BC1C65 #65BC1C

tetradic

#1C65BC #BC1CB5 #BC731C #1CBC23

square

#1C65BC #BC1CB5 #BC731C #1CBC23

split-complementary

#1C65BC #BC231C #B5BC1C

monochromatic

#0C2C51 #144887 #1C65BC #3483E1 #6AA4E9

Accessibility & contrast

On white

5.77

#1C65BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#1C65BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C65BC

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C65BC	#FFFFFF	#000000	##FFFFFF
##1C65BC	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356DBF

Deuteranopia (green-blind)

#055FBA

Tritanopia (blue-blind)

#007A87

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #1c65bc;
/* rgb */ color: rgb(28, 101, 188);
/* oklch */ color: oklch(51.2% 0.154 255.8);

Tailwind

colors: {
  custom: {
    50: '#7590d1',
    500: '#1c65bc',
    950: '#000000',
  },
}

SCSS

$custom: #1c65bc;
$custom-light: #7590d1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c65bc",
  "rgb": {
    "r": 28,
    "g": 101,
    "b": 188
  },
  "hsl": {
    "h": 212.625,
    "s": 74.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51193,
    "c": 0.15368,
    "h": 255.8
  },
  "luminance": 0.13185
}

Semantic roles & 50–950 ramp

primary

#1C65BC

secondary

#CE9E65

accent

#9C37F1

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #1C65BC

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

Preview Lab → · Contrast checker → · Palette generator →