#2A78B0#2A78B0

#2A78B0 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.115 H 244.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#2A78B0
RGB	rgb(42, 120, 176)
HSL	hsl(205, 61%, 43%)
HSV	hsv(205, 76%, 69%)
CMYK	cmyk(76.1%, 31.8%, 0%, 31%)
CIE-LAB	lab(48.33, -4.10, -36.43)
CIE-LCH	lch(48.33, 36.66, 263.58°)
OKLab	oklab(55.21% -0.0501 -0.1033)
OKLCH	oklch(55.21% 0.115 244.1)
XYZ	xyz(15.5048, 17.0580, 43.5412)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A78B0 #B0622A

analogous

#2AB0A5 #2A78B0 #2A35B0

triadic

#2A78B0 #B02A78 #78B02A

tetradic

#2A78B0 #A52AB0 #B0622A #35B02A

square

#2A78B0 #A52AB0 #B0622A #35B02A

split-complementary

#2A78B0 #B02A35 #B0A52A

monochromatic

#12354D #1E567F #2A78B0 #4597D3 #76B3DE

Accessibility & contrast

On white

4.76

#2A78B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#2A78B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A78B0

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A78B0	#FFFFFF	#000000	##FFFFFF
##2A78B0	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7AB2

Deuteranopia (green-blind)

#4B6DAF

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2a78b0;
/* rgb */ color: rgb(42, 120, 176);
/* oklch */ color: oklch(55.2% 0.115 244.1);

Tailwind

colors: {
  custom: {
    50: '#779ec8',
    500: '#2a78b0',
    950: '#000000',
  },
}

SCSS

$custom: #2a78b0;
$custom-light: #779ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a78b0",
  "rgb": {
    "r": 42,
    "g": 120,
    "b": 176
  },
  "hsl": {
    "h": 205.075,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55209,
    "c": 0.11479,
    "h": 244.1
  },
  "luminance": 0.1706
}

Semantic roles & 50–950 ramp

primary

#2A78B0

secondary

#C69470

accent

#8743E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2A78B0

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

Preview Lab → · Contrast checker → · Palette generator →