#1859B4#1859B4

#1859B4 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.158 H 258.3°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#1859B4
RGB	rgb(24, 89, 180)
HSL	hsl(215, 76%, 40%)
HSV	hsv(215, 87%, 71%)
CMYK	cmyk(86.7%, 50.6%, 0%, 29.4%)
CIE-LAB	lab(38.95, 15.24, -53.76)
CIE-LCH	lch(38.95, 55.88, 285.82°)
OKLab	oklab(47.85% -0.0321 -0.1549)
OKLCH	oklch(47.85% 0.158 258.3)
XYZ	xyz(12.1842, 10.6327, 44.5813)
Luminance	0.1063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1859B4 #B47318

analogous

#18A7B4 #1859B4 #2518B4

triadic

#1859B4 #B41859 #59B418

tetradic

#1859B4 #B418A7 #B47318 #18B425

square

#1859B4 #B418A7 #B47318 #18B425

split-complementary

#1859B4 #B42518 #A7B418

monochromatic

#0A2448 #113E7E #1859B4 #2775E2 #5D97E9

Accessibility & contrast

On white

6.72

#1859B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#1859B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1859B4

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1859B4	#FFFFFF	#000000	##FFFFFF
##1859B4	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E63B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1859b4;
/* rgb */ color: rgb(24, 89, 180);
/* oklch */ color: oklch(47.9% 0.158 258.3);

Tailwind

colors: {
  custom: {
    50: '#7387cb',
    500: '#1859b4',
    950: '#000000',
  },
}

SCSS

$custom: #1859b4;
$custom-light: #7387cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1859b4",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 180
  },
  "hsl": {
    "h": 215,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.47852,
    "c": 0.15821,
    "h": 258.3
  },
  "luminance": 0.10634
}

Semantic roles & 50–950 ramp

primary

#1859B4

secondary

#CD9D5B

accent

#A435F3

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1859B4

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

Preview Lab → · Contrast checker → · Palette generator →