#1C99AB#1C99AB

#1C99AB is a light, moderate teal. Relative luminance 0.260; OKLCH L 62.8% C 0.103 H 210.2°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#1C99AB
RGB	rgb(28, 153, 171)
HSL	hsl(188, 72%, 39%)
HSV	hsv(188, 84%, 67%)
CMYK	cmyk(83.6%, 10.5%, 0%, 32.9%)
CIE-LAB	lab(58.01, -25.53, -18.59)
CIE-LCH	lch(58.01, 31.58, 216.06°)
OKLab	oklab(62.8% -0.0892 -0.0518)
OKLCH	oklch(62.8% 0.103 210.2)
XYZ	xyz(19.2176, 25.9672, 42.5195)
Luminance	0.2597 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C99AB #AB2E1C

analogous

#1CAB76 #1C99AB #1C52AB

triadic

#1C99AB #AB1C99 #99AB1C

tetradic

#1C99AB #761CAB #AB2E1C #52AB1C

square

#1C99AB #761CAB #AB2E1C #52AB1C

split-complementary

#1C99AB #AB1C52 #AB761C

monochromatic

#0B3B42 #136A76 #1C99AB #28C5DC #5DD3E4

Accessibility & contrast

On white

3.39

#1C99AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#1C99AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1C99AB

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C99AB	#FFFFFF	#000000	##000000
##1C99AB	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A93AC

Deuteranopia (green-blind)

#7786AB

Tritanopia (blue-blind)

#00A19E

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #1c99ab;
/* rgb */ color: rgb(28, 153, 171);
/* oklch */ color: oklch(62.8% 0.103 210.2);

Tailwind

colors: {
  custom: {
    50: '#75b7c4',
    500: '#1c99ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c99ab;
$custom-light: #75b7c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c99ab",
  "rgb": {
    "r": 28,
    "g": 153,
    "b": 171
  },
  "hsl": {
    "h": 187.552,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.628,
    "c": 0.10317,
    "h": 210.2
  },
  "luminance": 0.2597
}

Semantic roles & 50–950 ramp

primary

#1C99AB

secondary

#C9685A

accent

#5039EF

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1112

muted

#7C8081

Preview Lab

Preview with #1C99AB

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

Preview Lab → · Contrast checker → · Palette generator →