#0388A1
Closest named color: Teal Blue (#01889F). oklch(57.8% 0.103 216.9), rgb(3, 136, 161).
Aa
Black text reads best on this color (5.04:1).
About this color
#0388A1 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.103 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.003 away. Black text reads best on it, at 5.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #0388A1 |
| RGB | rgb(3, 136, 161) |
| HSL | hsl(189, 96%, 32%) |
| OKLCH | oklch(57.8% 0.103 216.9) |
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 #0388A1 | 4.16:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #0388A1 | 5.04:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #0388A1 text on white | 4.16:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #0388A1 text on black | 5.04:1 | AA | Lc -33.5 | 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 600.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D4
oklch(81% 0.046 215.9)
-
Step 400
400
#68ACBF
oklch(70.6% 0.074 217.7)
-
Step 500
500
#3797AF
oklch(63.1% 0.094 217.6)
-
Step 600
600 (this color)
#0388A1
oklch(57.8% 0.103 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#0D4957
oklch(37.6% 0.062 217.8)
-
Step 950
950
#0B2B33
oklch(27% 0.039 217.4)
#0388A1 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) | #7884A2 | 0.089 |
| Deuteranopia (no green cones) | #6576A1 | 0.080 |
| Tritanopia (no blue cones) | #009190 | 0.044 |
| Achromatopsia (no color) | #7C7C7C | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0388A1
#0388A1
oklch(57.8% 0.103 216.9)
- #AD624D
#AD624D
oklch(57.7% 0.103 36.5)
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 #0388A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.003
- Blue NCS #118AB2 ΔE 0.027
- Dark Cyan #008B8B ΔE 0.039
- Ocean #017B92 ΔE 0.041
- Teal Green #0A9396 ΔE 0.042
- Cerulean #457B9D ΔE 0.045
- Steel Blue #4682B4 ΔE 0.051
- Stormy Blue #507B9C ΔE 0.051
Use #0388A1 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.