#0591BF#0591BF

#0591BF is a mid, vivid cyan. Relative luminance 0.240; OKLCH L 61.5% C 0.121 H 229.8°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#0591BF
RGB	rgb(5, 145, 191)
HSL	hsl(195, 95%, 38%)
HSV	hsv(195, 97%, 75%)
CMYK	cmyk(97.4%, 24.1%, 0%, 25.1%)
CIE-LAB	lab(56.13, -15.57, -32.85)
CIE-LCH	lch(56.13, 36.35, 244.65°)
OKLab	oklab(61.49% -0.0783 -0.0928)
OKLCH	oklch(61.49% 0.121 229.8)
XYZ	xyz(19.5880, 24.0420, 52.8883)
Luminance	0.2404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0591BF #BF3305

analogous

#05BF90 #0591BF #0534BF

triadic

#0591BF #BF0591 #91BF05

tetradic

#0591BF #9005BF #BF3305 #34BF05

square

#0591BF #9005BF #BF3305 #34BF05

split-complementary

#0591BF #BF0534 #BF9005

monochromatic

#023648 #036483 #0591BF #09BDF9 #44CDFA

Accessibility & contrast

On white

3.62

#0591BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#0591BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #0591BF

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0591BF	#FFFFFF	#000000	##000000
##0591BF	1.00	3.62	5.81	5.81
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798FC1

Deuteranopia (green-blind)

#6380BE

Tritanopia (blue-blind)

#009EA1

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #0591bf;
/* rgb */ color: rgb(5, 145, 191);
/* oklch */ color: oklch(61.5% 0.121 229.8);

Tailwind

colors: {
  custom: {
    50: '#74b1d2',
    500: '#0591bf',
    950: '#000000',
  },
}

SCSS

$custom: #0591bf;
$custom-light: #74b1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#0591bf",
  "rgb": {
    "r": 5,
    "g": 145,
    "b": 191
  },
  "hsl": {
    "h": 194.839,
    "s": 94.898,
    "l": 38.431
  },
  "oklch": {
    "l": 0.61494,
    "c": 0.12141,
    "h": 229.8
  },
  "luminance": 0.24045
}

Semantic roles & 50–950 ramp

primary

#0591BF

secondary

#DA6B46

accent

#5E29FF

background

#F7FAFC

surface

#EEF5F9

border

#C9CFD2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #0591BF

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

Preview Lab → · Contrast checker → · Palette generator →