#257EC6#257EC6

#257EC6 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.8% C 0.137 H 247.9°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#257EC6
RGB	rgb(37, 126, 198)
HSL	hsl(207, 69%, 46%)
HSV	hsv(207, 81%, 78%)
CMYK	cmyk(81.3%, 36.4%, 0%, 22.4%)
CIE-LAB	lab(51.14, -0.09, -44.66)
CIE-LCH	lch(51.14, 44.66, 269.89°)
OKLab	oklab(57.76% -0.0516 -0.1273)
OKLCH	oklch(57.76% 0.137 247.9)
XYZ	xyz(18.4129, 19.3900, 56.1873)
Luminance	0.1939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EC6 #C66D25

analogous

#25C6BD #257EC6 #252DC6

triadic

#257EC6 #C6257E #7EC625

tetradic

#257EC6 #BD25C6 #C66D25 #2DC625

square

#257EC6 #BD25C6 #C66D25 #2DC625

split-complementary

#257EC6 #C6252D #C6BD25

monochromatic

#123C5F #1B5D92 #257EC6 #4B9CDD #7EB8E7

Accessibility & contrast

On white

4.30

#257EC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#257EC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257EC6

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EC6	#FFFFFF	#000000	##000000
##257EC6	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C82C9

Deuteranopia (green-blind)

#4473C5

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #257ec6;
/* rgb */ color: rgb(37, 126, 198);
/* oklch */ color: oklch(57.8% 0.137 247.9);

Tailwind

colors: {
  custom: {
    50: '#7aa3d7',
    500: '#257ec6',
    950: '#000000',
  },
}

SCSS

$custom: #257ec6;
$custom-light: #7aa3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#257ec6",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 198
  },
  "hsl": {
    "h": 206.832,
    "s": 68.511,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57758,
    "c": 0.13737,
    "h": 247.9
  },
  "luminance": 0.19392
}

Semantic roles & 50–950 ramp

primary

#257EC6

secondary

#CF9F77

accent

#8B3CEB

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #257EC6

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

Preview Lab → · Contrast checker → · Palette generator →