#439F9D
Closest named color: Sea (#3C9992). oklch(64.7% 0.087 193.3), rgb(67, 159, 157).
Aa
Black text reads best on this color (6.68:1).
About this color
#439F9D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.087 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.023 away. Black text reads best on it, at 6.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.68:1 |
| White text | 3.14:1 |
Values
| HEX | #439F9D |
| RGB | rgb(67, 159, 157) |
| HSL | hsl(179, 41%, 44%) |
| OKLCH | oklch(64.7% 0.087 193.3) |
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 #439F9D | 3.14:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #439F9D | 6.68:1 | AA | Lc 45.8 | Large or bold text, headings |
| #439F9D text on white | 3.14:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #439F9D text on black | 6.68:1 | AA | Lc -43.5 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDD
oklch(88.4% 0.023 193.4)
-
Step 300
300
#A2CAC8
oklch(81% 0.042 192.6)
-
Step 400
400
#6CAEAC
oklch(70.6% 0.068 193.3)
-
Step 500
500 (this color)
#439F9D
oklch(64.7% 0.087 193.3)
-
Step 600
600
#068483
oklch(55.5% 0.094 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#025B5A
oklch(42.7% 0.072 193.5)
-
Step 900
900
#134B4A
oklch(37.7% 0.056 193.3)
-
Step 950
950
#0E2C2B
oklch(27% 0.036 192.3)
#439F9D 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) | #96989D | 0.091 |
| Deuteranopia (no green cones) | #878D9E | 0.085 |
| Tritanopia (no blue cones) | #00A39E | 0.025 |
| Achromatopsia (no color) | #919191 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439F9D
#439F9D
oklch(64.7% 0.087 193.3)
- #BD787F
#BD787F
oklch(64.7% 0.087 13.2)
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 #439F9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.023
- Cadet Blue #5F9EA0 ΔE 0.025
- Persian Green #2A9D8F ΔE 0.028
- Dull Teal #5F9E8F ΔE 0.028
- Grey Teal #5E9B8A ΔE 0.031
- Blue Green #0F9B8E ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.047
- Teal Green #0A9396 ΔE 0.048
Use #439F9D 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.