#2591BA#2591BA

#2591BA is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.6% C 0.111 H 229.0°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#2591BA
RGB	rgb(37, 145, 186)
HSL	hsl(197, 67%, 44%)
HSV	hsv(197, 80%, 73%)
CMYK	cmyk(80.1%, 22%, 0%, 27.1%)
CIE-LAB	lab(56.27, -15.39, -29.76)
CIE-LCH	lch(56.27, 33.51, 242.66°)
OKLab	oklab(61.64% -0.0727 -0.0837)
OKLCH	oklch(61.64% 0.111 229)
XYZ	xyz(19.7476, 24.1868, 50.0726)
Luminance	0.2419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2591BA #BA4E25

analogous

#25BA98 #2591BA #2546BA

triadic

#2591BA #BA2591 #91BA25

tetradic

#2591BA #9825BA #BA4E25 #46BA25

square

#2591BA #9825BA #BA4E25 #46BA25

split-complementary

#2591BA #BA2546 #BA9825

monochromatic

#114154 #1B6987 #2591BA #43B0DA #76C5E4

Accessibility & contrast

On white

3.60

#2591BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#2591BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2591BA

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2591BA	#FFFFFF	#000000	##000000
##2591BA	1.00	3.60	5.84	5.84
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBC

Deuteranopia (green-blind)

#6881B9

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #2591ba;
/* rgb */ color: rgb(37, 145, 186);
/* oklch */ color: oklch(61.6% 0.111 229.0);

Tailwind

colors: {
  custom: {
    50: '#78b1cf',
    500: '#2591ba',
    950: '#000000',
  },
}

SCSS

$custom: #2591ba;
$custom-light: #78b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2591ba",
  "rgb": {
    "r": 37,
    "g": 145,
    "b": 186
  },
  "hsl": {
    "h": 196.51,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.61643,
    "c": 0.11089,
    "h": 229
  },
  "luminance": 0.24189
}

Semantic roles & 50–950 ramp

primary

#2591BA

secondary

#CB8970

accent

#6D3EEA

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2591BA

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

Preview Lab → · Contrast checker → · Palette generator →