#2597B4#2597B4

#2597B4 is a light, moderate cyan. Relative luminance 0.258; OKLCH L 62.8% C 0.105 H 219.6°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#2597B4
RGB	rgb(37, 151, 180)
HSL	hsl(192, 66%, 43%)
HSV	hsv(192, 79%, 71%)
CMYK	cmyk(79.4%, 16.1%, 0%, 29.4%)
CIE-LAB	lab(57.87, -20.67, -23.90)
CIE-LCH	lch(57.87, 31.60, 229.15°)
OKLab	oklab(62.84% -0.0807 -0.0669)
OKLCH	oklch(62.84% 0.105 219.6)
XYZ	xyz(20.0643, 25.8193, 47.0973)
Luminance	0.2582 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2597B4 #B44225

analogous

#25B48A #2597B4 #254FB4

triadic

#2597B4 #B42597 #97B425

tetradic

#2597B4 #8A25B4 #B44225 #4FB425

square

#2597B4 #8A25B4 #B44225 #4FB425

split-complementary

#2597B4 #B4254F #B48A25

monochromatic

#10424E #1B6C81 #2597B4 #3FB8D7 #71CBE2

Accessibility & contrast

On white

3.41

#2597B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#2597B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2597B4

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2597B4	#FFFFFF	#000000	##000000
##2597B4	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8593B6

Deuteranopia (green-blind)

#7285B4

Tritanopia (blue-blind)

#00A1A0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #2597b4;
/* rgb */ color: rgb(37, 151, 180);
/* oklch */ color: oklch(62.8% 0.105 219.6);

Tailwind

colors: {
  custom: {
    50: '#78b5ca',
    500: '#2597b4',
    950: '#000000',
  },
}

SCSS

$custom: #2597b4;
$custom-light: #78b5ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2597b4",
  "rgb": {
    "r": 37,
    "g": 151,
    "b": 180
  },
  "hsl": {
    "h": 192.168,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.62838,
    "c": 0.10484,
    "h": 219.6
  },
  "luminance": 0.25822
}

Semantic roles & 50–950 ramp

primary

#2597B4

secondary

#C97F6C

accent

#613FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #2597B4

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

Preview Lab → · Contrast checker → · Palette generator →