#2599BA#2599BA

#2599BA is a light, moderate cyan. Relative luminance 0.267; OKLCH L 63.6% C 0.108 H 222.2°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#2599BA
RGB	rgb(37, 153, 186)
HSL	hsl(193, 67%, 44%)
HSV	hsv(193, 80%, 73%)
CMYK	cmyk(80.1%, 17.7%, 0%, 27.1%)
CIE-LAB	lab(58.71, -19.70, -25.99)
CIE-LCH	lch(58.71, 32.62, 232.84°)
OKLab	oklab(63.6% -0.0803 -0.0728)
OKLCH	oklch(63.6% 0.108 222.2)
XYZ	xyz(21.0134, 26.7183, 50.4945)
Luminance	0.2672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2599BA #BA4625

analogous

#25BA90 #2599BA #254EBA

triadic

#2599BA #BA2599 #99BA25

tetradic

#2599BA #9025BA #BA4625 #4EBA25

square

#2599BA #9025BA #BA4625 #4EBA25

split-complementary

#2599BA #BA254E #BA9025

monochromatic

#114554 #1B6F87 #2599BA #43B8DA #76CBE4

Accessibility & contrast

On white

3.31

#2599BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#2599BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2599BA

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2599BA	#FFFFFF	#000000	##000000
##2599BA	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8695BC

Deuteranopia (green-blind)

#7287BA

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #2599ba;
/* rgb */ color: rgb(37, 153, 186);
/* oklch */ color: oklch(63.6% 0.108 222.2);

Tailwind

colors: {
  custom: {
    50: '#79b7ce',
    500: '#2599ba',
    950: '#000000',
  },
}

SCSS

$custom: #2599ba;
$custom-light: #79b7ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2599ba",
  "rgb": {
    "r": 37,
    "g": 153,
    "b": 186
  },
  "hsl": {
    "h": 193.289,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.63597,
    "c": 0.10843,
    "h": 222.2
  },
  "luminance": 0.26721
}

Semantic roles & 50–950 ramp

primary

#2599BA

secondary

#CB8470

accent

#643EEA

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #2599BA

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

Preview Lab → · Contrast checker → · Palette generator →