#1D83A8#1D83A8

#1D83A8 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.2% C 0.104 H 228.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D83A8
RGB	rgb(29, 131, 168)
HSL	hsl(196, 71%, 39%)
HSV	hsv(196, 83%, 66%)
CMYK	cmyk(82.7%, 22%, 0%, 34.1%)
CIE-LAB	lab(51.06, -14.77, -27.55)
CIE-LCH	lch(51.06, 31.26, 241.80°)
OKLab	oklab(57.18% -0.0689 -0.0775)
OKLCH	oklch(57.18% 0.104 228.3)
XYZ	xyz(15.6880, 19.3190, 39.9403)
Luminance	0.1932 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D83A8 #A8421D

analogous

#1DA887 #1D83A8 #1D3DA8

triadic

#1D83A8 #A81D83 #83A81D

tetradic

#1D83A8 #871DA8 #A8421D #3DA81D

square

#1D83A8 #871DA8 #A8421D #3DA81D

split-complementary

#1D83A8 #A81D3D #A8871D

monochromatic

#0B3240 #145A74 #1D83A8 #28ABDA #5CBFE3

Accessibility & contrast

On white

4.32

#1D83A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#1D83A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D83A8

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D83A8	#FFFFFF	#000000	##000000
##1D83A8	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7081AA

Deuteranopia (green-blind)

#5D74A7

Tritanopia (blue-blind)

#008D8F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #1d83a8;
/* rgb */ color: rgb(29, 131, 168);
/* oklch */ color: oklch(57.2% 0.104 228.3);

Tailwind

colors: {
  custom: {
    50: '#72a7c2',
    500: '#1d83a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d83a8;
$custom-light: #72a7c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d83a8",
  "rgb": {
    "r": 29,
    "g": 131,
    "b": 168
  },
  "hsl": {
    "h": 195.971,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.57175,
    "c": 0.10375,
    "h": 228.3
  },
  "luminance": 0.19321
}

Semantic roles & 50–950 ramp

primary

#1D83A8

secondary

#C7775A

accent

#6A3AED

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #1D83A8

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

Preview Lab → · Contrast checker → · Palette generator →