#2597B2#2597B2

#2597B2 is a light, moderate cyan. Relative luminance 0.257; OKLCH L 62.8% C 0.104 H 218.1°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#2597B2
RGB	rgb(37, 151, 178)
HSL	hsl(191, 66%, 42%)
HSV	hsv(191, 79%, 70%)
CMYK	cmyk(79.2%, 15.2%, 0%, 30.2%)
CIE-LAB	lab(57.79, -21.34, -22.89)
CIE-LCH	lch(57.79, 31.29, 227.00°)
OKLab	oklab(62.75% -0.0815 -0.064)
OKLCH	oklch(62.75% 0.104 218.1)
XYZ	xyz(19.8620, 25.7384, 46.0320)
Luminance	0.2574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2597B2 #B24025

analogous

#25B286 #2597B2 #2551B2

triadic

#2597B2 #B22597 #97B225

tetradic

#2597B2 #8625B2 #B24025 #51B225

square

#2597B2 #8625B2 #B24025 #51B225

split-complementary

#2597B2 #B22551 #B28625

monochromatic

#10414D #1A6C7F #2597B2 #3DB9D7 #70CCE1

Accessibility & contrast

On white

3.42

#2597B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#2597B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2597B2

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2597B2	#FFFFFF	#000000	##000000
##2597B2	1.00	3.42	6.15	6.15
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8693B3

Deuteranopia (green-blind)

#7385B2

Tritanopia (blue-blind)

#00A0A0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #2597b2;
/* rgb */ color: rgb(37, 151, 178);
/* oklch */ color: oklch(62.8% 0.104 218.1);

Tailwind

colors: {
  custom: {
    50: '#78b5c9',
    500: '#2597b2',
    950: '#000000',
  },
}

SCSS

$custom: #2597b2;
$custom-light: #78b5c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2597b2",
  "rgb": {
    "r": 37,
    "g": 151,
    "b": 178
  },
  "hsl": {
    "h": 191.489,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.62751,
    "c": 0.10365,
    "h": 218.1
  },
  "luminance": 0.25741
}

Semantic roles & 50–950 ramp

primary

#2597B2

secondary

#C87D6B

accent

#603FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #2597B2

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

Preview Lab → · Contrast checker → · Palette generator →