#1858B4#1858B4

#1858B4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.6% C 0.159 H 258.6°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#1858B4
RGB	rgb(24, 88, 180)
HSL	hsl(215, 76%, 40%)
HSV	hsv(215, 87%, 71%)
CMYK	cmyk(86.7%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(38.67, 15.90, -54.23)
CIE-LCH	lch(38.67, 56.51, 286.34°)
OKLab	oklab(47.63% -0.0314 -0.1563)
OKLCH	oklch(47.63% 0.159 258.6)
XYZ	xyz(12.1016, 10.4674, 44.5537)
Luminance	0.1047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1858B4 #B47418

analogous

#18A6B4 #1858B4 #2618B4

triadic

#1858B4 #B41858 #58B418

tetradic

#1858B4 #B418A6 #B47418 #18B426

square

#1858B4 #B418A6 #B47418 #18B426

split-complementary

#1858B4 #B42618 #A6B418

monochromatic

#0A2348 #113E7E #1858B4 #2774E2 #5D97E9

Accessibility & contrast

On white

6.79

#1858B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#1858B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1858B4

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1858B4	#FFFFFF	#000000	##FFFFFF
##1858B4	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A62B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1858b4;
/* rgb */ color: rgb(24, 88, 180);
/* oklch */ color: oklch(47.6% 0.159 258.6);

Tailwind

colors: {
  custom: {
    50: '#7386cb',
    500: '#1858b4',
    950: '#000000',
  },
}

SCSS

$custom: #1858b4;
$custom-light: #7386cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1858b4",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 215.385,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.47633,
    "c": 0.15943,
    "h": 258.6
  },
  "luminance": 0.10469
}

Semantic roles & 50–950 ramp

primary

#1858B4

secondary

#CD9E5B

accent

#A535F3

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1858B4

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

Preview Lab → · Contrast checker → · Palette generator →