#398EB1#398EB1

#398EB1 is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.0% C 0.096 H 228.7°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#398EB1
RGB	rgb(57, 142, 177)
HSL	hsl(198, 51%, 46%)
HSV	hsv(198, 68%, 69%)
CMYK	cmyk(67.8%, 19.8%, 0%, 30.6%)
CIE-LAB	lab(55.47, -14.21, -25.84)
CIE-LCH	lch(55.47, 29.49, 241.19°)
OKLab	oklab(61.01% -0.0635 -0.0723)
OKLCH	oklch(61.01% 0.096 228.7)
XYZ	xyz(19.2930, 23.3881, 45.0840)
Luminance	0.2339 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398EB1 #B15C39

analogous

#39B198 #398EB1 #3952B1

triadic

#398EB1 #B1398E #8EB139

tetradic

#398EB1 #9839B1 #B15C39 #52B139

square

#398EB1 #9839B1 #B15C39 #52B139

split-complementary

#398EB1 #B13952 #B19839

monochromatic

#1B4454 #2A6983 #398EB1 #5DABCB #8BC3DA

Accessibility & contrast

On white

3.70

#398EB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#398EB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398EB1

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398EB1	#FFFFFF	#000000	##000000
##398EB1	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB3

Deuteranopia (green-blind)

#6B80B1

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #398eb1;
/* rgb */ color: rgb(57, 142, 177);
/* oklch */ color: oklch(61.0% 0.096 228.7);

Tailwind

colors: {
  custom: {
    50: '#7dafc8',
    500: '#398eb1',
    950: '#000000',
  },
}

SCSS

$custom: #398eb1;
$custom-light: #7dafc8;
$custom-dark: #000000;

JSON

{
  "hex": "#398eb1",
  "rgb": {
    "r": 57,
    "g": 142,
    "b": 177
  },
  "hsl": {
    "h": 197.5,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.61014,
    "c": 0.09627,
    "h": 228.7
  },
  "luminance": 0.2339
}

Semantic roles & 50–950 ramp

primary

#398EB1

secondary

#C49582

accent

#764DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #398EB1

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

Preview Lab → · Contrast checker → · Palette generator →