#338B7D
Closest named color: Dark Cyan (#008B8B). oklch(58% 0.086 180.8), rgb(51, 139, 125).
Aa
Black text reads best on this color (5.12:1).
About this color
#338B7D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.086 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.026 away. Black text reads best on it, at 5.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #338B7D |
| RGB | rgb(51, 139, 125) |
| HSL | hsl(170, 46%, 37%) |
| OKLCH | oklch(58% 0.086 180.8) |
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 #338B7D | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #338B7D | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #338B7D text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #338B7D text on black | 5.12:1 | AA | Lc -33.8 | 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 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A6C9C2
oklch(80.8% 0.039 181.8)
-
Step 400
400
#75AEA2
oklch(70.8% 0.062 179.7)
-
Step 500
500
#4D998C
oklch(63% 0.079 181.1)
-
Step 600
600 (this color)
#338B7D
oklch(58% 0.086 180.8)
-
Step 700
700
#1B6F63
oklch(49% 0.08 181.1)
-
Step 800
800
#1A5B51
oklch(42.8% 0.067 180.7)
-
Step 900
900
#1D4B43
oklch(37.8% 0.052 180.2)
-
Step 950
950
#122C27
oklch(27.1% 0.034 179.6)
#338B7D 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) | #85837C | 0.091 |
| Deuteranopia (no green cones) | #78797E | 0.087 |
| Tritanopia (no blue cones) | #008D87 | 0.020 |
| Achromatopsia (no color) | #7D7D7D | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338B7D
#338B7D
oklch(58% 0.086 180.8)
- #A46477
#A46477
oklch(57.9% 0.086 0.9)
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 #338B7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.029
- Teal Green #0A9396 ΔE 0.038
- Teal #008080 ΔE 0.044
- Viridian #1E9167 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.046
- Sea #3C9992 ΔE 0.047
- Slate Green #658D6D ΔE 0.051
Use #338B7D 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.