#2577A5#2577A5

#2577A5 is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.2% C 0.105 H 238.2°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#2577A5
RGB	rgb(37, 119, 165)
HSL	hsl(202, 63%, 40%)
HSV	hsv(202, 78%, 65%)
CMYK	cmyk(77.6%, 27.9%, 0%, 35.3%)
CIE-LAB	lab(47.37, -8.15, -31.54)
CIE-LCH	lch(47.37, 32.58, 255.52°)
OKLab	oklab(54.23% -0.0552 -0.0891)
OKLCH	oklch(54.23% 0.105 238.2)
XYZ	xyz(14.1486, 16.3019, 37.9909)
Luminance	0.1630 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2577A5 #A55325

analogous

#25A593 #2577A5 #2537A5

triadic

#2577A5 #A52577 #77A525

tetradic

#2577A5 #9325A5 #A55325 #37A525

square

#2577A5 #9325A5 #A55325 #37A525

split-complementary

#2577A5 #A52537 #A59325

monochromatic

#0F2F41 #1A5373 #2577A5 #359AD2 #67B3DD

Accessibility & contrast

On white

4.93

#2577A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#2577A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2577A5

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2577A5	#FFFFFF	#000000	##FFFFFF
##2577A5	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6177A7

Deuteranopia (green-blind)

#506BA4

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #2577a5;
/* rgb */ color: rgb(37, 119, 165);
/* oklch */ color: oklch(54.2% 0.105 238.2);

Tailwind

colors: {
  custom: {
    50: '#739ec0',
    500: '#2577a5',
    950: '#000000',
  },
}

SCSS

$custom: #2577a5;
$custom-light: #739ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2577a5",
  "rgb": {
    "r": 37,
    "g": 119,
    "b": 165
  },
  "hsl": {
    "h": 201.563,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.54234,
    "c": 0.10485,
    "h": 238.2
  },
  "luminance": 0.16304
}

Semantic roles & 50–950 ramp

primary

#2577A5

secondary

#C38563

accent

#7D41E6

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2577A5

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

Preview Lab → · Contrast checker → · Palette generator →