#308B8B
Closest named color: Dark Cyan (#008B8B). oklch(58.4% 0.084 195.1), rgb(48, 139, 139).
Aa
Black text reads best on this color (5.19:1).
About this color
#308B8B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.084 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.016 away. Black text reads best on it, at 5.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #308B8B |
| RGB | rgb(48, 139, 139) |
| HSL | hsl(180, 49%, 37%) |
| OKLCH | oklch(58.4% 0.084 195.1) |
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 #308B8B | 4.04:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #308B8B | 5.19:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #308B8B text on white | 4.04:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #308B8B text on black | 5.19:1 | AA | Lc -34.2 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A5C9C8
oklch(80.9% 0.038 194.3)
-
Step 400
400
#73ADAC
oklch(70.8% 0.06 194.5)
-
Step 500
500
#499898
oklch(63% 0.077 195.4)
-
Step 600
600 (this color)
#308B8B
oklch(58.4% 0.084 195.1)
-
Step 700
700
#156E6E
oklch(49% 0.078 194.9)
-
Step 800
800
#165A5A
oklch(42.7% 0.065 195)
-
Step 900
900
#1B4A4A
oklch(37.7% 0.051 195.2)
-
Step 950
950
#112B2B
oklch(26.9% 0.032 195.4)
#308B8B 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) | #82848B | 0.088 |
| Deuteranopia (no green cones) | #747A8C | 0.082 |
| Tritanopia (no blue cones) | #008F8B | 0.018 |
| Achromatopsia (no color) | #7E7E7E | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308B8B
#308B8B
oklch(58.4% 0.084 195.1)
- #A7666B
#A7666B
oklch(58.3% 0.084 15)
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 #308B8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.016
- Teal Green #0A9396 ΔE 0.025
- Dusty Teal #4C9085 ΔE 0.030
- Teal Blue #01889F ΔE 0.038
- Teal #008080 ΔE 0.042
- Sea #3C9992 ΔE 0.043
- Blue Green #0F9B8E ΔE 0.047
- Persian Green #2A9D8F ΔE 0.053
Use #308B8B 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.