#257E9E#257E9E

#257E9E is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.6% C 0.095 H 226.8°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#257E9E
RGB	rgb(37, 126, 158)
HSL	hsl(196, 62%, 38%)
HSV	hsv(196, 77%, 62%)
CMYK	cmyk(76.6%, 20.3%, 0%, 38%)
CIE-LAB	lab(49.23, -14.66, -24.56)
CIE-LCH	lch(49.23, 28.60, 239.16°)
OKLab	oklab(55.62% -0.0647 -0.0689)
OKLCH	oklch(55.62% 0.095 226.8)
XYZ	xyz(14.3928, 17.7819, 35.0148)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E9E #9E4525

analogous

#259E81 #257E9E #25419E

triadic

#257E9E #9E257E #7E9E25

tetradic

#257E9E #81259E #9E4525 #419E25

square

#257E9E #81259E #9E4525 #419E25

split-complementary

#257E9E #9E2541 #9E8125

monochromatic

#0E2F3B #19566C #257E9E #31A5CF #63BBDA

Accessibility & contrast

On white

4.61

#257E9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#257E9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257E9E

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E9E	#FFFFFF	#000000	##FFFFFF
##257E9E	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7CA0

Deuteranopia (green-blind)

#5D709E

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257e9e;
/* rgb */ color: rgb(37, 126, 158);
/* oklch */ color: oklch(55.6% 0.095 226.8);

Tailwind

colors: {
  custom: {
    50: '#72a3ba',
    500: '#257e9e',
    950: '#000000',
  },
}

SCSS

$custom: #257e9e;
$custom-light: #72a3ba;
$custom-dark: #000000;

JSON

{
  "hex": "#257e9e",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 158
  },
  "hsl": {
    "h": 195.868,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.55616,
    "c": 0.0945,
    "h": 226.8
  },
  "luminance": 0.17784
}

Semantic roles & 50–950 ramp

primary

#257E9E

secondary

#C0795F

accent

#6E43E5

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #257E9E

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

Preview Lab → · Contrast checker → · Palette generator →