#1D78A8#1D78A8

#1D78A8 is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.5% C 0.110 H 237.8°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#1D78A8
RGB	rgb(29, 120, 168)
HSL	hsl(201, 71%, 39%)
HSV	hsv(201, 83%, 66%)
CMYK	cmyk(82.7%, 28.6%, 0%, 34.1%)
CIE-LAB	lab(47.65, -8.49, -32.87)
CIE-LCH	lch(47.65, 33.95, 255.52°)
OKLab	oklab(54.46% -0.0586 -0.093)
OKLCH	oklch(54.46% 0.11 237.8)
XYZ	xyz(14.2882, 16.5195, 39.4737)
Luminance	0.1652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D78A8 #A84D1D

analogous

#1DA892 #1D78A8 #1D33A8

triadic

#1D78A8 #A81D78 #78A81D

tetradic

#1D78A8 #921DA8 #A84D1D #33A81D

square

#1D78A8 #921DA8 #A84D1D #33A81D

split-complementary

#1D78A8 #A81D33 #A8921D

monochromatic

#0B2D40 #145374 #1D78A8 #289DDA #5CB5E3

Accessibility & contrast

On white

4.88

#1D78A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#1D78A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D78A8

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D78A8	#FFFFFF	#000000	##FFFFFF
##1D78A8	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6178AA

Deuteranopia (green-blind)

#4E6BA7

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #1d78a8;
/* rgb */ color: rgb(29, 120, 168);
/* oklch */ color: oklch(54.5% 0.110 237.8);

Tailwind

colors: {
  custom: {
    50: '#719ec2',
    500: '#1d78a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d78a8;
$custom-light: #719ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d78a8",
  "rgb": {
    "r": 29,
    "g": 120,
    "b": 168
  },
  "hsl": {
    "h": 200.719,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.54455,
    "c": 0.10994,
    "h": 237.8
  },
  "luminance": 0.16521
}

Semantic roles & 50–950 ramp

primary

#1D78A8

secondary

#C77F5A

accent

#783AED

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1D78A8

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

Preview Lab → · Contrast checker → · Palette generator →