#549FB4
Closest named color: Cadet Blue (#5F9EA0). oklch(66.2% 0.081 218.3), rgb(84, 159, 180).
Aa
Black text reads best on this color (6.99:1).
About this color
#549FB4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.081 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.030 away. Black text reads best on it, at 6.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #549FB4 |
| RGB | rgb(84, 159, 180) |
| HSL | hsl(193, 39%, 52%) |
| OKLCH | oklch(66.2% 0.081 218.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #549FB4 | 3.00:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #549FB4 | 6.99:1 | AA | Lc 47.5 | Large or bold text, headings |
| #549FB4 text on white | 3.00:1 | AA large text | Lc 56.5 | Large or bold text, headings |
| #549FB4 text on black | 6.99:1 | AA | Lc -45.2 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A5C7D2
oklch(80.8% 0.04 219.4)
-
Step 400
400
#73ABBB
oklch(70.8% 0.063 217.7)
-
Step 500
500 (this color)
#549FB4
oklch(66.2% 0.081 218.3)
-
Step 600
600
#277F96
oklch(55.5% 0.088 219.2)
-
Step 700
700
#176B80
oklch(49% 0.082 219.3)
-
Step 800
800
#175868
oklch(42.8% 0.068 218.1)
-
Step 900
900
#1B4854
oklch(37.6% 0.053 218.2)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#549FB4 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #919BB5 | 0.069 |
| Deuteranopia (no green cones) | #8390B4 | 0.063 |
| Tritanopia (no blue cones) | #0AA6A6 | 0.049 |
| Achromatopsia (no color) | #959595 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #549FB4
#549FB4
oklch(66.2% 0.081 218.3)
- #BE826F
#BE826F
oklch(66.3% 0.08 38.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #549FB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.030
- Greyblue #77A1B5 ΔE 0.037
- Turquoise Blue #06B1C4 ΔE 0.054
- Dull Teal #5F9E8F ΔE 0.055
- Bluegrey #85A3B2 ΔE 0.055
- Blue Grey #758DA3 ΔE 0.056
- Silver Lake Blue #778DA9 ΔE 0.057
- Sea #3C9992 ΔE 0.057
Use #549FB4 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.