#257EBD#257EBD

#257EBD is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.2% C 0.127 H 244.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#257EBD
RGB	rgb(37, 126, 189)
HSL	hsl(205, 67%, 44%)
HSV	hsv(205, 80%, 74%)
CMYK	cmyk(80.4%, 33.3%, 0%, 25.9%)
CIE-LAB	lab(50.67, -3.44, -40.25)
CIE-LCH	lch(50.67, 40.40, 265.11°)
OKLab	oklab(57.24% -0.0541 -0.1144)
OKLCH	oklch(57.24% 0.127 244.7)
XYZ	xyz(17.4055, 18.9870, 50.8818)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EBD #BD6425

analogous

#25BDB0 #257EBD #2532BD

triadic

#257EBD #BD257E #7EBD25

tetradic

#257EBD #B025BD #BD6425 #32BD25

square

#257EBD #B025BD #BD6425 #32BD25

split-complementary

#257EBD #BD2532 #BDB025

monochromatic

#113A57 #1B5C8A #257EBD #459CDB #78B7E5

Accessibility & contrast

On white

4.38

#257EBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#257EBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257EBD

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EBD	#FFFFFF	#000000	##000000
##257EBD	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C0

Deuteranopia (green-blind)

#4B72BC

Tritanopia (blue-blind)

#008D95

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #257ebd;
/* rgb */ color: rgb(37, 126, 189);
/* oklch */ color: oklch(57.2% 0.127 244.7);

Tailwind

colors: {
  custom: {
    50: '#78a3d1',
    500: '#257ebd',
    950: '#000000',
  },
}

SCSS

$custom: #257ebd;
$custom-light: #78a3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#257ebd",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 189
  },
  "hsl": {
    "h": 204.868,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.57236,
    "c": 0.12657,
    "h": 244.7
  },
  "luminance": 0.18989
}

Semantic roles & 50–950 ramp

primary

#257EBD

secondary

#CC9772

accent

#853EEA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0F14

muted

#7C7E82

Preview Lab

Preview with #257EBD

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

Preview Lab → · Contrast checker → · Palette generator →