#1859B3#1859B3

#1859B3 is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.8% C 0.157 H 258.1°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#1859B3
RGB	rgb(24, 89, 179)
HSL	hsl(215, 76%, 40%)
HSV	hsv(215, 87%, 70%)
CMYK	cmyk(86.6%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(38.88, 14.84, -53.29)
CIE-LCH	lch(38.88, 55.31, 285.56°)
OKLab	oklab(47.78% -0.0323 -0.1535)
OKLCH	oklch(47.78% 0.157 258.1)
XYZ	xyz(12.0827, 10.5921, 44.0467)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1859B3 #B37218

analogous

#18A6B3 #1859B3 #2518B3

triadic

#1859B3 #B31859 #59B318

tetradic

#1859B3 #B318A6 #B37218 #18B325

square

#1859B3 #B318A6 #B37218 #18B325

split-complementary

#1859B3 #B32518 #A6B318

monochromatic

#0A2347 #113E7D #1859B3 #2675E2 #5C97E9

Accessibility & contrast

On white

6.73

#1859B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1859B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1859B3

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1859B3	#FFFFFF	#000000	##FFFFFF
##1859B3	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2063B6

Deuteranopia (green-blind)

#0055B1

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1859b3;
/* rgb */ color: rgb(24, 89, 179);
/* oklch */ color: oklch(47.8% 0.157 258.1);

Tailwind

colors: {
  custom: {
    50: '#7387ca',
    500: '#1859b3',
    950: '#000000',
  },
}

SCSS

$custom: #1859b3;
$custom-light: #7387ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1859b3",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 214.839,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47776,
    "c": 0.15687,
    "h": 258.1
  },
  "luminance": 0.10594
}

Semantic roles & 50–950 ramp

primary

#1859B3

secondary

#CD9D5A

accent

#A335F3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1859B3

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

Preview Lab → · Contrast checker → · Palette generator →