#2597B5#2597B5

#2597B5 is a light, moderate cyan. Relative luminance 0.259; OKLCH L 62.9% C 0.105 H 220.4°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#2597B5
RGB	rgb(37, 151, 181)
HSL	hsl(193, 66%, 43%)
HSV	hsv(193, 80%, 71%)
CMYK	cmyk(79.6%, 16.6%, 0%, 29%)
CIE-LAB	lab(57.90, -20.33, -24.41)
CIE-LCH	lch(57.90, 31.77, 230.20°)
OKLab	oklab(62.88% -0.0803 -0.0683)
OKLCH	oklch(62.88% 0.105 220.4)
XYZ	xyz(20.1665, 25.8602, 47.6358)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2597B5 #B54325

analogous

#25B58B #2597B5 #254FB5

triadic

#2597B5 #B52597 #97B525

tetradic

#2597B5 #8B25B5 #B54325 #4FB525

square

#2597B5 #8B25B5 #B54325 #4FB525

split-complementary

#2597B5 #B5254F #B58B25

monochromatic

#10424F #1B6D82 #2597B5 #3FB8D8 #72CBE2

Accessibility & contrast

On white

3.40

#2597B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#2597B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2597B5

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2597B5	#FFFFFF	#000000	##000000
##2597B5	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8593B7

Deuteranopia (green-blind)

#7285B5

Tritanopia (blue-blind)

#00A1A1

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #2597b5;
/* rgb */ color: rgb(37, 151, 181);
/* oklch */ color: oklch(62.9% 0.105 220.4);

Tailwind

colors: {
  custom: {
    50: '#78b5cb',
    500: '#2597b5',
    950: '#000000',
  },
}

SCSS

$custom: #2597b5;
$custom-light: #78b5cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2597b5",
  "rgb": {
    "r": 37,
    "g": 151,
    "b": 181
  },
  "hsl": {
    "h": 192.5,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.62883,
    "c": 0.10548,
    "h": 220.4
  },
  "luminance": 0.25863
}

Semantic roles & 50–950 ramp

primary

#2597B5

secondary

#C9806D

accent

#623FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #2597B5

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

Preview Lab → · Contrast checker → · Palette generator →