#398CB3#398CB3

#398CB3 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.6% C 0.099 H 232.1°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#398CB3
RGB	rgb(57, 140, 179)
HSL	hsl(199, 52%, 46%)
HSV	hsv(199, 68%, 70%)
CMYK	cmyk(68.2%, 21.8%, 0%, 29.8%)
CIE-LAB	lab(54.95, -12.44, -27.80)
CIE-LCH	lch(54.95, 30.45, 245.90°)
OKLab	oklab(60.62% -0.0607 -0.078)
OKLCH	oklch(60.62% 0.099 232.1)
XYZ	xyz(19.1989, 22.8786, 46.0433)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398CB3 #B36039

analogous

#39B39D #398CB3 #394FB3

triadic

#398CB3 #B3398C #8CB339

tetradic

#398CB3 #9D39B3 #B36039 #4FB339

square

#398CB3 #9D39B3 #B36039 #4FB339

split-complementary

#398CB3 #B3394F #B39D39

monochromatic

#1B4356 #2A6885 #398CB3 #5EA8CC #8CC1DA

Accessibility & contrast

On white

3.77

#398CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#398CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398CB3

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398CB3	#FFFFFF	#000000	##000000
##398CB3	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798AB5

Deuteranopia (green-blind)

#687EB2

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #398cb3;
/* rgb */ color: rgb(57, 140, 179);
/* oklch */ color: oklch(60.6% 0.099 232.1);

Tailwind

colors: {
  custom: {
    50: '#7eadca',
    500: '#398cb3',
    950: '#000000',
  },
}

SCSS

$custom: #398cb3;
$custom-light: #7eadca;
$custom-dark: #000000;

JSON

{
  "hex": "#398cb3",
  "rgb": {
    "r": 57,
    "g": 140,
    "b": 179
  },
  "hsl": {
    "h": 199.18,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.60624,
    "c": 0.09879,
    "h": 232.1
  },
  "luminance": 0.22881
}

Semantic roles & 50–950 ramp

primary

#398CB3

secondary

#C59883

accent

#7A4DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #398CB3

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

Preview Lab → · Contrast checker → · Palette generator →