#439A8F
Closest named color: Sea (#3C9992). oklch(63% 0.085 184.1), rgb(67, 154, 143).
Aa
Black text reads best on this color (6.25:1).
About this color
#439A8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.085 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.008 away. Black text reads best on it, at 6.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #439A8F |
| RGB | rgb(67, 154, 143) |
| HSL | hsl(172, 39%, 43%) |
| OKLCH | oklch(63% 0.085 184.1) |
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 #439A8F | 3.35:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #439A8F | 6.25:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #439A8F text on white | 3.35:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #439A8F text on black | 6.25:1 | AA | Lc -40.9 | Non-text elements, placeholder text |
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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#C9DEDB
oklch(88.4% 0.023 186.4)
-
Step 300
300
#A3CAC4
oklch(80.9% 0.042 184.9)
-
Step 400
400
#6FAFA5
oklch(70.8% 0.068 183.4)
-
Step 500
500 (this color)
#439A8F
oklch(63% 0.085 184.1)
-
Step 600
600
#188579
oklch(55.7% 0.093 183.4)
-
Step 700
700
#037066
oklch(49% 0.086 184.1)
-
Step 800
800
#0D5B53
oklch(42.5% 0.071 184.2)
-
Step 900
900
#174B45
oklch(37.7% 0.055 184.5)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#439A8F 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) | #93928F | 0.091 |
| Deuteranopia (no green cones) | #858890 | 0.085 |
| Tritanopia (no blue cones) | #009D96 | 0.025 |
| Achromatopsia (no color) | #8C8C8C | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439A8F
#439A8F
oklch(63% 0.085 184.1)
- #B57383
#B57383
oklch(63% 0.085 4.1)
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 #439A8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.008
- Persian Green #2A9D8F ΔE 0.016
- Blue Green #0F9B8E ΔE 0.024
- Grey Teal #5E9B8A ΔE 0.025
- Dusty Teal #4C9085 ΔE 0.028
- Dull Teal #5F9E8F ΔE 0.029
- Teal Green #0A9396 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.039
Use #439A8F 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.