#357FDB#357FDB

#357FDB is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.7% C 0.158 H 255.6°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#357FDB
RGB	rgb(53, 127, 219)
HSL	hsl(213, 70%, 53%)
HSV	hsv(213, 76%, 86%)
CMYK	cmyk(75.8%, 42%, 0%, 14.1%)
CIE-LAB	lab(53.00, 8.82, -53.58)
CIE-LCH	lch(53.00, 54.30, 279.35°)
OKLab	oklab(59.71% -0.0392 -0.1533)
OKLCH	oklch(59.71% 0.158 255.6)
XYZ	xyz(21.8390, 21.0476, 69.9157)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357FDB #DB9135

analogous

#35D2DB #357FDB #3E35DB

triadic

#357FDB #DB357F #7FDB35

tetradic

#357FDB #DB35D2 #DB9135 #35DB3E

square

#357FDB #DB35D2 #DB9135 #35DB3E

split-complementary

#357FDB #DB3E35 #D2DB35

monochromatic

#17457F #2061B3 #357FDB #69A0E4 #9DC1EE

Accessibility & contrast

On white

4.03

#357FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#357FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357FDB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357FDB	#FFFFFF	#000000	##000000
##357FDB	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5287DF

Deuteranopia (green-blind)

#3478D9

Tritanopia (blue-blind)

#0095A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #357fdb;
/* rgb */ color: rgb(53, 127, 219);
/* oklch */ color: oklch(59.7% 0.158 255.6);

Tailwind

colors: {
  custom: {
    50: '#83a3e7',
    500: '#357fdb',
    950: '#000000',
  },
}

SCSS

$custom: #357fdb;
$custom-light: #83a3e7;
$custom-dark: #000000;

JSON

{
  "hex": "#357fdb",
  "rgb": {
    "r": 53,
    "g": 127,
    "b": 219
  },
  "hsl": {
    "h": 213.253,
    "s": 69.748,
    "l": 53.333
  },
  "oklch": {
    "l": 0.59706,
    "c": 0.15824,
    "h": 255.6
  },
  "luminance": 0.2105
}

Semantic roles & 50–950 ramp

primary

#357FDB

secondary

#DABA92

accent

#9E3BED

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #357FDB

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

Preview Lab → · Contrast checker → · Palette generator →