#3874D9#3874D9

#3874D9 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.167 H 260.2°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3874D9
RGB	rgb(56, 116, 217)
HSL	hsl(218, 68%, 54%)
HSV	hsv(218, 74%, 85%)
CMYK	cmyk(74.2%, 46.5%, 0%, 14.9%)
CIE-LAB	lab(49.90, 15.27, -57.41)
CIE-LCH	lch(49.90, 59.40, 284.90°)
OKLab	oklab(57.3% -0.0285 -0.1647)
OKLCH	oklch(57.3% 0.167 260.2)
XYZ	xyz(20.3961, 18.3390, 68.0970)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3874D9 #D99D38

analogous

#38C4D9 #3874D9 #4C38D9

triadic

#3874D9 #D93874 #74D938

tetradic

#3874D9 #D938C4 #D99D38 #38D94C

square

#3874D9 #D938C4 #D99D38 #38D94C

split-complementary

#3874D9 #D94C38 #C4D938

monochromatic

#183E7E #2258B2 #3874D9 #6B98E3 #9FBCED

Accessibility & contrast

On white

4.50

#3874D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#3874D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3874D9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3874D9	#FFFFFF	#000000	##000000
##3874D9	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7FDD

Deuteranopia (green-blind)

#1370D7

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3874d9;
/* rgb */ color: rgb(56, 116, 217);
/* oklch */ color: oklch(57.3% 0.167 260.2);

Tailwind

colors: {
  custom: {
    50: '#849be5',
    500: '#3874d9',
    950: '#000000',
  },
}

SCSS

$custom: #3874d9;
$custom-light: #849be5;
$custom-dark: #000000;

JSON

{
  "hex": "#3874d9",
  "rgb": {
    "r": 56,
    "g": 116,
    "b": 217
  },
  "hsl": {
    "h": 217.64,
    "s": 67.932,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57301,
    "c": 0.16716,
    "h": 260.2
  },
  "luminance": 0.18341
}

Semantic roles & 50–950 ramp

primary

#3874D9

secondary

#D9BF94

accent

#AA3DEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3874D9

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

Preview Lab → · Contrast checker → · Palette generator →