#6398EB#6398EB

#6398EB is a light, vivid blue. Relative luminance 0.311; OKLCH L 67.9% C 0.136 H 259.1°. Best body text is #000000 at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#6398EB
RGB	rgb(99, 152, 235)
HSL	hsl(217, 77%, 65%)
HSV	hsv(217, 58%, 92%)
CMYK	cmyk(57.9%, 35.3%, 0%, 7.8%)
CIE-LAB	lab(62.60, 6.74, -47.14)
CIE-LCH	lch(62.60, 47.62, 278.14°)
OKLab	oklab(67.94% -0.0258 -0.1334)
OKLCH	oklch(67.94% 0.136 259.1)
XYZ	xyz(31.3640, 31.1046, 82.9321)
Luminance	0.3111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6398EB #EBB663

analogous

#63DCEB #6398EB #7263EB

triadic

#6398EB #EB6398 #98EB63

tetradic

#6398EB #EB63DC #EBB663 #63EB72

square

#6398EB #EB63DC #EBB663 #63EB72

split-complementary

#6398EB #EB7263 #DCEB63

monochromatic

#1858BC #2D74E4 #6398EB #99BCF2 #CFE0F9

Accessibility & contrast

On white

2.91

#6398EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.22

#6398EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6398EB

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6398EB	#FFFFFF	#000000	##000000
##6398EB	1.00	2.91	7.22	7.22
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.22	21.00	1.00	1.00
##000000	7.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#759EEE

Deuteranopia (green-blind)

#6492E9

Tritanopia (blue-blind)

#00ABB6

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #6398eb;
/* rgb */ color: rgb(99, 152, 235);
/* oklch */ color: oklch(67.9% 0.136 259.1);

Tailwind

colors: {
  custom: {
    50: '#99b5f2',
    500: '#6398eb',
    950: '#000000',
  },
}

SCSS

$custom: #6398eb;
$custom-light: #99b5f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6398eb",
  "rgb": {
    "r": 99,
    "g": 152,
    "b": 235
  },
  "hsl": {
    "h": 216.618,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.67937,
    "c": 0.1359,
    "h": 259.1
  },
  "luminance": 0.31107
}

Semantic roles & 50–950 ramp

primary

#6398EB

secondary

#ECDABE

accent

#890CDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #6398EB

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

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