#128388
Closest named color: Teal (#008080). oklch(55.6% 0.091 199.8), rgb(18, 131, 136).
Aa
Black text reads best on this color (4.62:1).
About this color
#128388 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.091 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.015 away. Black text reads best on it, at 4.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #128388 |
| RGB | rgb(18, 131, 136) |
| HSL | hsl(183, 77%, 30%) |
| OKLCH | oklch(55.6% 0.091 199.8) |
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 #128388 | 4.53:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #128388 | 4.62:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #128388 text on white | 4.53:1 | AA | Lc 71.1 | Content text, not long reading |
| #128388 text on black | 4.62:1 | AA | Lc -30.6 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CB
oklch(80.9% 0.04 200.3)
-
Step 400
400
#6EADB0
oklch(70.6% 0.065 199.6)
-
Step 500
500
#41999D
oklch(63.2% 0.084 199.4)
-
Step 600
600 (this color)
#128388
oklch(55.6% 0.091 199.8)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#085A5E
oklch(42.6% 0.07 200.3)
-
Step 900
900
#154A4D
oklch(37.6% 0.054 200.5)
-
Step 950
950
#0F2C2D
oklch(27.2% 0.035 198.4)
#128388 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) | #787D88 | 0.092 |
| Deuteranopia (no green cones) | #697189 | 0.087 |
| Tritanopia (no blue cones) | #008884 | 0.019 |
| Achromatopsia (no color) | #767676 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #128388
#128388
oklch(55.6% 0.091 199.8)
- #A25C5D
#A25C5D
oklch(55.5% 0.092 19.5)
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 #128388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.015
- Dark Cyan #008B8B ΔE 0.023
- Bluegreen #017A79 ΔE 0.033
- Ocean #017B92 ΔE 0.034
- Deep Aqua #08787F ΔE 0.034
- Teal Blue #01889F ΔE 0.035
- Teal Green #0A9396 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.053
Use #128388 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.