#1F90B2#1F90B2

#1F90B2 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 60.9% C 0.107 H 223.9°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F90B2
RGB	rgb(31, 144, 178)
HSL	hsl(194, 70%, 41%)
HSV	hsv(194, 83%, 70%)
CMYK	cmyk(82.6%, 19.1%, 0%, 30.2%)
CIE-LAB	lab(55.53, -18.20, -26.37)
CIE-LCH	lch(55.53, 32.03, 235.39°)
OKLab	oklab(60.91% -0.0768 -0.074)
OKLCH	oklch(60.91% 0.107 223.9)
XYZ	xyz(18.5708, 23.4498, 45.6583)
Luminance	0.2345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F90B2 #B2411F

analogous

#1FB28A #1F90B2 #1F46B2

triadic

#1F90B2 #B21F90 #90B21F

tetradic

#1F90B2 #8A1FB2 #B2411F #46B21F

square

#1F90B2 #8A1FB2 #B2411F #46B21F

split-complementary

#1F90B2 #B21F46 #B28A1F

monochromatic

#0D3C4A #16667E #1F90B2 #33B4DB #67C7E5

Accessibility & contrast

On white

3.69

#1F90B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#1F90B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F90B2

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F90B2	#FFFFFF	#000000	##000000
##1F90B2	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8DB4

Deuteranopia (green-blind)

#6A7FB2

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1f90b2;
/* rgb */ color: rgb(31, 144, 178);
/* oklch */ color: oklch(60.9% 0.107 223.9);

Tailwind

colors: {
  custom: {
    50: '#75b0c9',
    500: '#1f90b2',
    950: '#000000',
  },
}

SCSS

$custom: #1f90b2;
$custom-light: #75b0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f90b2",
  "rgb": {
    "r": 31,
    "g": 144,
    "b": 178
  },
  "hsl": {
    "h": 193.878,
    "s": 70.335,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60909,
    "c": 0.10669,
    "h": 223.9
  },
  "luminance": 0.23452
}

Semantic roles & 50–950 ramp

primary

#1F90B2

secondary

#CA7B63

accent

#643BED

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1F90B2

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

Preview Lab → · Contrast checker → · Palette generator →