#3A78B2#3A78B2

#3A78B2 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.9% C 0.111 H 249.1°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3A78B2
RGB	rgb(58, 120, 178)
HSL	hsl(209, 51%, 46%)
HSV	hsv(209, 67%, 70%)
CMYK	cmyk(67.4%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(48.94, -1.02, -36.60)
CIE-LCH	lch(48.94, 36.61, 268.40°)
OKLab	oklab(55.86% -0.0396 -0.1036)
OKLCH	oklch(55.86% 0.111 249.1)
XYZ	xyz(16.4943, 17.5451, 44.6281)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A78B2 #B2743A

analogous

#3AB2B0 #3A78B2 #3A3CB2

triadic

#3A78B2 #B23A78 #78B23A

tetradic

#3A78B2 #B03AB2 #B2743A #3CB23A

square

#3A78B2 #B03AB2 #B2743A #3CB23A

split-complementary

#3A78B2 #B23A3C #B2B03A

monochromatic

#1C3A56 #2B5984 #3A78B2 #5F96CB #8DB4DA

Accessibility & contrast

On white

4.66

#3A78B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3A78B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3A78B2

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A78B2	#FFFFFF	#000000	##FFFFFF
##3A78B2	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7BB4

Deuteranopia (green-blind)

#4E6FB1

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3a78b2;
/* rgb */ color: rgb(58, 120, 178);
/* oklch */ color: oklch(55.9% 0.111 249.1);

Tailwind

colors: {
  custom: {
    50: '#7d9ec9',
    500: '#3a78b2',
    950: '#000000',
  },
}

SCSS

$custom: #3a78b2;
$custom-light: #7d9ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a78b2",
  "rgb": {
    "r": 58,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 209,
    "s": 50.847,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55863,
    "c": 0.11091,
    "h": 249.1
  },
  "luminance": 0.17547
}

Semantic roles & 50–950 ramp

primary

#3A78B2

secondary

#C4A383

accent

#924DDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3A78B2

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

Preview Lab → · Contrast checker → · Palette generator →