#398EB3#398EB3

#398EB3 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.1% C 0.098 H 230.2°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#398EB3
RGB	rgb(57, 142, 179)
HSL	hsl(198, 52%, 46%)
HSV	hsv(198, 68%, 70%)
CMYK	cmyk(68.2%, 20.7%, 0%, 29.8%)
CIE-LAB	lab(55.55, -13.55, -26.86)
CIE-LCH	lch(55.55, 30.08, 243.24°)
OKLab	oklab(61.11% -0.0628 -0.0753)
OKLCH	oklch(61.11% 0.098 230.2)
XYZ	xyz(19.4938, 23.4684, 46.1416)
Luminance	0.2347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398EB3 #B35E39

analogous

#39B39B #398EB3 #3951B3

triadic

#398EB3 #B3398E #8EB339

tetradic

#398EB3 #9B39B3 #B35E39 #51B339

square

#398EB3 #9B39B3 #B35E39 #51B339

split-complementary

#398EB3 #B33951 #B39B39

monochromatic

#1B4456 #2A6985 #398EB3 #5EAACC #8CC3DA

Accessibility & contrast

On white

3.69

#398EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#398EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398EB3

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398EB3	#FFFFFF	#000000	##000000
##398EB3	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB5

Deuteranopia (green-blind)

#6A80B2

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #398eb3;
/* rgb */ color: rgb(57, 142, 179);
/* oklch */ color: oklch(61.1% 0.098 230.2);

Tailwind

colors: {
  custom: {
    50: '#7eafca',
    500: '#398eb3',
    950: '#000000',
  },
}

SCSS

$custom: #398eb3;
$custom-light: #7eafca;
$custom-dark: #000000;

JSON

{
  "hex": "#398eb3",
  "rgb": {
    "r": 57,
    "g": 142,
    "b": 179
  },
  "hsl": {
    "h": 198.197,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.61106,
    "c": 0.098,
    "h": 230.2
  },
  "luminance": 0.23471
}

Semantic roles & 50–950 ramp

primary

#398EB3

secondary

#C59783

accent

#784DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #398EB3

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

Preview Lab → · Contrast checker → · Palette generator →