#277D9B#277D9B

#277D9B is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.092 H 225.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#277D9B
RGB	rgb(39, 125, 155)
HSL	hsl(196, 60%, 38%)
HSV	hsv(196, 75%, 61%)
CMYK	cmyk(74.8%, 19.4%, 0%, 39.2%)
CIE-LAB	lab(48.84, -14.89, -23.40)
CIE-LCH	lch(48.84, 27.74, 237.53°)
OKLab	oklab(55.27% -0.0639 -0.0656)
OKLCH	oklch(55.27% 0.092 225.8)
XYZ	xyz(14.0843, 17.4635, 33.6325)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277D9B #9B4527

analogous

#279B7F #277D9B #27439B

triadic

#277D9B #9B277D #7D9B27

tetradic

#277D9B #7F279B #9B4527 #439B27

square

#277D9B #7F279B #9B4527 #439B27

split-complementary

#277D9B #9B2743 #9B7F27

monochromatic

#0E2E39 #1B566A #277D9B #33A4CC #64BAD8

Accessibility & contrast

On white

4.67

#277D9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#277D9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277D9B

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277D9B	#FFFFFF	#000000	##FFFFFF
##277D9B	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7A9D

Deuteranopia (green-blind)

#5D6F9B

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277d9b;
/* rgb */ color: rgb(39, 125, 155);
/* oklch */ color: oklch(55.3% 0.092 225.8);

Tailwind

colors: {
  custom: {
    50: '#72a2b8',
    500: '#277d9b',
    950: '#000000',
  },
}

SCSS

$custom: #277d9b;
$custom-light: #72a2b8;
$custom-dark: #000000;

JSON

{
  "hex": "#277d9b",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 155
  },
  "hsl": {
    "h": 195.517,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.55274,
    "c": 0.09156,
    "h": 225.8
  },
  "luminance": 0.17465
}

Semantic roles & 50–950 ramp

primary

#277D9B

secondary

#BE7860

accent

#6E45E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277D9B

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

Preview Lab → · Contrast checker → · Palette generator →