#257591#257591

#257591 is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 52.7% C 0.087 H 225.7°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#257591
RGB	rgb(37, 117, 145)
HSL	hsl(196, 59%, 36%)
HSV	hsv(196, 74%, 57%)
CMYK	cmyk(74.5%, 19.3%, 0%, 43.1%)
CIE-LAB	lab(45.85, -14.15, -22.13)
CIE-LCH	lch(45.85, 26.27, 237.40°)
OKLab	oklab(52.73% -0.0605 -0.062)
OKLCH	oklch(52.73% 0.087 225.7)
XYZ	xyz(12.2330, 15.1588, 29.0638)
Luminance	0.1516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257591 #914125

analogous

#259177 #257591 #253F91

triadic

#257591 #912575 #759125

tetradic

#257591 #772591 #914125 #3F9125

square

#257591 #772591 #914125 #3F9125

split-complementary

#257591 #91253F #917725

monochromatic

#0C262F #194E60 #257591 #319CC2 #5BB6D5

Accessibility & contrast

On white

5.21

#257591 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#257591 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257591

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257591	#FFFFFF	#000000	##FFFFFF
##257591	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667392

Deuteranopia (green-blind)

#576891

Tritanopia (blue-blind)

#007D7E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #257591;
/* rgb */ color: rgb(37, 117, 145);
/* oklch */ color: oklch(52.7% 0.087 225.7);

Tailwind

colors: {
  custom: {
    50: '#709cb1',
    500: '#257591',
    950: '#000000',
  },
}

SCSS

$custom: #257591;
$custom-light: #709cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#257591",
  "rgb": {
    "r": 37,
    "g": 117,
    "b": 145
  },
  "hsl": {
    "h": 195.556,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.5273,
    "c": 0.08665,
    "h": 225.7
  },
  "luminance": 0.1516
}

Semantic roles & 50–950 ramp

primary

#257591

secondary

#BA7158

accent

#6E45E3

background

#F7F9FA

surface

#EDF2F5

border

#C8CCCF

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #257591

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

Preview Lab → · Contrast checker → · Palette generator →