#2A78B1#2A78B1

#2A78B1 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.116 H 244.6°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2A78B1
RGB	rgb(42, 120, 177)
HSL	hsl(205, 62%, 43%)
HSV	hsv(205, 76%, 69%)
CMYK	cmyk(76.3%, 32.2%, 0%, 30.6%)
CIE-LAB	lab(48.38, -3.73, -36.93)
CIE-LCH	lch(48.38, 37.12, 264.23°)
OKLab	oklab(55.27% -0.0498 -0.1047)
OKLCH	oklch(55.27% 0.116 244.6)
XYZ	xyz(15.6041, 17.0977, 44.0642)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A78B1 #B1632A

analogous

#2AB1A6 #2A78B1 #2A35B1

triadic

#2A78B1 #B12A78 #78B12A

tetradic

#2A78B1 #A62AB1 #B1632A #35B12A

square

#2A78B1 #A62AB1 #B1632A #35B12A

split-complementary

#2A78B1 #B12A35 #B1A62A

monochromatic

#13354E #1E5680 #2A78B1 #4597D3 #77B3DF

Accessibility & contrast

On white

4.75

#2A78B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#2A78B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A78B1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A78B1	#FFFFFF	#000000	##FFFFFF
##2A78B1	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7AB3

Deuteranopia (green-blind)

#4B6DB0

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2a78b1;
/* rgb */ color: rgb(42, 120, 177);
/* oklch */ color: oklch(55.3% 0.116 244.6);

Tailwind

colors: {
  custom: {
    50: '#779ec8',
    500: '#2a78b1',
    950: '#000000',
  },
}

SCSS

$custom: #2a78b1;
$custom-light: #779ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a78b1",
  "rgb": {
    "r": 42,
    "g": 120,
    "b": 177
  },
  "hsl": {
    "h": 205.333,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.55265,
    "c": 0.11598,
    "h": 244.6
  },
  "luminance": 0.171
}

Semantic roles & 50–950 ramp

primary

#2A78B1

secondary

#C69570

accent

#8743E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2A78B1

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

Preview Lab → · Contrast checker → · Palette generator →