#257FD4#257FD4

#257FD4 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.154 H 251.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#257FD4
RGB	rgb(37, 127, 212)
HSL	hsl(209, 70%, 49%)
HSV	hsv(209, 83%, 83%)
CMYK	cmyk(82.5%, 40.1%, 0%, 16.9%)
CIE-LAB	lab(52.20, 4.57, -50.93)
CIE-LCH	lch(52.20, 51.13, 275.13°)
OKLab	oklab(58.84% -0.049 -0.1457)
OKLCH	oklch(58.84% 0.154 251.4)
XYZ	xyz(20.2315, 20.3230, 65.1310)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257FD4 #D47A25

analogous

#25D4D2 #257FD4 #2528D4

triadic

#257FD4 #D4257F #7FD425

tetradic

#257FD4 #D225D4 #D47A25 #28D425

square

#257FD4 #D225D4 #D47A25 #28D425

split-complementary

#257FD4 #D42528 #D4D225

monochromatic

#13416C #1C60A0 #257FD4 #559DE1 #89BBEA

Accessibility & contrast

On white

4.15

#257FD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#257FD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257FD4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257FD4	#FFFFFF	#000000	##000000
##257FD4	1.00	4.15	5.07	5.07
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5585D7

Deuteranopia (green-blind)

#3875D2

Tritanopia (blue-blind)

#00939F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #257fd4;
/* rgb */ color: rgb(37, 127, 212);
/* oklch */ color: oklch(58.8% 0.154 251.4);

Tailwind

colors: {
  custom: {
    50: '#7da3e2',
    500: '#257fd4',
    950: '#000000',
  },
}

SCSS

$custom: #257fd4;
$custom-light: #7da3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#257fd4",
  "rgb": {
    "r": 37,
    "g": 127,
    "b": 212
  },
  "hsl": {
    "h": 209.143,
    "s": 70.281,
    "l": 48.824
  },
  "oklch": {
    "l": 0.58838,
    "c": 0.15368,
    "h": 251.4
  },
  "luminance": 0.20326
}

Semantic roles & 50–950 ramp

primary

#257FD4

secondary

#D4A981

accent

#913BED

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #257FD4

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

Preview Lab → · Contrast checker → · Palette generator →