#388B9D
Closest named color: Teal Blue (#01889F). oklch(59.4% 0.083 214.5), rgb(56, 139, 157).
Aa
Black text reads best on this color (5.34:1).
About this color
#388B9D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.083 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.025 away. Black text reads best on it, at 5.34:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.34:1 |
| White text | 3.92:1 |
Values
| HEX | #388B9D |
| RGB | rgb(56, 139, 157) |
| HSL | hsl(191, 47%, 42%) |
| OKLCH | oklch(59.4% 0.083 214.5) |
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 #388B9D | 3.92:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #388B9D | 5.34:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #388B9D text on white | 3.92:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #388B9D text on black | 5.34:1 | AA | Lc -35.2 | 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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D1
oklch(81% 0.04 214.6)
-
Step 400
400
#70ABBA
oklch(70.6% 0.065 215.5)
-
Step 500
500 (this color)
#388B9D
oklch(59.4% 0.083 214.5)
-
Step 600
600
#1C8094
oklch(55.5% 0.091 215)
-
Step 700
700
#096C7E
oklch(49% 0.084 214.9)
-
Step 800
800
#105867
oklch(42.6% 0.07 215.8)
-
Step 900
900
#184953
oklch(37.7% 0.054 213.6)
-
Step 950
950
#102B31
oklch(27.1% 0.034 214.3)
#388B9D 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) | #7E879E | 0.075 |
| Deuteranopia (no green cones) | #6F7C9D | 0.067 |
| Tritanopia (no blue cones) | #009291 | 0.038 |
| Achromatopsia (no color) | #808080 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #388B9D
#388B9D
oklch(59.4% 0.083 214.5)
- #AA6C5D
#AA6C5D
oklch(59.4% 0.083 34.3)
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 #388B9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.025
- Teal Green #0A9396 ΔE 0.034
- Blue NCS #118AB2 ΔE 0.037
- Dark Cyan #008B8B ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.046
- Off Blue #5684AE ΔE 0.047
- Cerulean #457B9D ΔE 0.048
Use #388B9D 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.