#2577A4#2577A4

#2577A4 is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.2% C 0.104 H 237.6°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#2577A4
RGB	rgb(37, 119, 164)
HSL	hsl(201, 63%, 39%)
HSV	hsv(201, 77%, 64%)
CMYK	cmyk(77.4%, 27.4%, 0%, 35.7%)
CIE-LAB	lab(47.32, -8.51, -31.03)
CIE-LCH	lch(47.32, 32.18, 254.66°)
OKLab	oklab(54.18% -0.0555 -0.0876)
OKLCH	oklch(54.18% 0.104 237.6)
XYZ	xyz(14.0580, 16.2656, 37.5134)
Luminance	0.1627 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2577A4 #A45225

analogous

#25A492 #2577A4 #2538A4

triadic

#2577A4 #A42577 #77A425

tetradic

#2577A4 #9225A4 #A45225 #38A425

square

#2577A4 #9225A4 #A45225 #38A425

split-complementary

#2577A4 #A42538 #A49225

monochromatic

#0E2F40 #1A5372 #2577A4 #359AD1 #67B3DD

Accessibility & contrast

On white

4.94

#2577A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#2577A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2577A4

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2577A4	#FFFFFF	#000000	##FFFFFF
##2577A4	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6277A6

Deuteranopia (green-blind)

#506BA3

Tritanopia (blue-blind)

#008287

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #2577a4;
/* rgb */ color: rgb(37, 119, 164);
/* oklch */ color: oklch(54.2% 0.104 237.6);

Tailwind

colors: {
  custom: {
    50: '#739ebf',
    500: '#2577a4',
    950: '#000000',
  },
}

SCSS

$custom: #2577a4;
$custom-light: #739ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#2577a4",
  "rgb": {
    "r": 37,
    "g": 119,
    "b": 164
  },
  "hsl": {
    "h": 201.26,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.54181,
    "c": 0.10377,
    "h": 237.6
  },
  "luminance": 0.16267
}

Semantic roles & 50–950 ramp

primary

#2577A4

secondary

#C28462

accent

#7C42E6

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2577A4

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

Preview Lab → · Contrast checker → · Palette generator →