#30638B#30638B

#30638B is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.3% C 0.085 H 244.6°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#30638B
RGB	rgb(48, 99, 139)
HSL	hsl(206, 49%, 37%)
HSV	hsv(206, 65%, 55%)
CMYK	cmyk(65.5%, 28.8%, 0%, 45.5%)
CIE-LAB	lab(40.27, -3.87, -27.19)
CIE-LCH	lch(40.27, 27.46, 261.91°)
OKLab	oklab(48.3% -0.0364 -0.0766)
OKLCH	oklch(48.3% 0.085 244.6)
XYZ	xyz(10.3392, 11.4151, 26.0795)
Luminance	0.1142 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30638B #8B5830

analogous

#308B86 #30638B #30368B

triadic

#30638B #8B3063 #638B30

tetradic

#30638B #86308B #8B5830 #368B30

square

#30638B #86308B #8B5830 #368B30

split-complementary

#30638B #8B3036 #8B8630

monochromatic

#112230 #20435E #30638B #4083B8 #6AA1CC

Accessibility & contrast

On white

6.40

#30638B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#30638B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #30638B

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30638B	#FFFFFF	#000000	##FFFFFF
##30638B	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51648D

Deuteranopia (green-blind)

#455B8A

Tritanopia (blue-blind)

#006D71

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #30638b;
/* rgb */ color: rgb(48, 99, 139);
/* oklch */ color: oklch(48.3% 0.085 244.6);

Tailwind

colors: {
  custom: {
    50: '#728fad',
    500: '#30638b',
    950: '#000000',
  },
}

SCSS

$custom: #30638b;
$custom-light: #728fad;
$custom-dark: #000000;

JSON

{
  "hex": "#30638b",
  "rgb": {
    "r": 48,
    "g": 99,
    "b": 139
  },
  "hsl": {
    "h": 206.374,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.48303,
    "c": 0.08481,
    "h": 244.6
  },
  "luminance": 0.11416
}

Semantic roles & 50–950 ramp

primary

#30638B

secondary

#B38764

accent

#8C50D8

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #30638B

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

Preview Lab → · Contrast checker → · Palette generator →