#407E9B#407E9B

#407E9B is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.078 H 230.6°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#407E9B
RGB	rgb(64, 126, 155)
HSL	hsl(199, 42%, 43%)
HSV	hsv(199, 59%, 61%)
CMYK	cmyk(58.7%, 18.7%, 0%, 39.2%)
CIE-LAB	lab(49.95, -11.16, -21.63)
CIE-LCH	lch(49.95, 24.34, 242.71°)
OKLab	oklab(56.39% -0.0496 -0.0603)
OKLCH	oklch(56.39% 0.078 230.6)
XYZ	xyz(15.4893, 18.3768, 33.7348)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#407E9B #9B5D40

analogous

#409B8A #407E9B #40509B

triadic

#407E9B #9B407E #7E9B40

tetradic

#407E9B #8A409B #9B5D40 #509B40

square

#407E9B #8A409B #9B5D40 #509B40

split-complementary

#407E9B #9B4050 #9B8A40

monochromatic

#1C3844 #2E5B70 #407E9B #5C9DBC #88B7CE

Accessibility & contrast

On white

4.49

#407E9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#407E9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #407E9B

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##407E9B	#FFFFFF	#000000	##000000
##407E9B	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7C9C

Deuteranopia (green-blind)

#63739B

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #407e9b;
/* rgb */ color: rgb(64, 126, 155);
/* oklch */ color: oklch(56.4% 0.078 230.6);

Tailwind

colors: {
  custom: {
    50: '#7da3b8',
    500: '#407e9b',
    950: '#000000',
  },
}

SCSS

$custom: #407e9b;
$custom-light: #7da3b8;
$custom-dark: #000000;

JSON

{
  "hex": "#407e9b",
  "rgb": {
    "r": 64,
    "g": 126,
    "b": 155
  },
  "hsl": {
    "h": 199.121,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56387,
    "c": 0.07806,
    "h": 230.6
  },
  "luminance": 0.18378
}

Semantic roles & 50–950 ramp

primary

#407E9B

secondary

#B8917E

accent

#7E56D1

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #407E9B

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

Preview Lab → · Contrast checker → · Palette generator →