#128BA2
Closest named color: Teal Blue (#01889F). oklch(58.7% 0.101 215.4), rgb(18, 139, 162).
Aa
Black text reads best on this color (5.24:1).
About this color
#128BA2 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.101 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.011 away. Black text reads best on it, at 5.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #128BA2 |
| RGB | rgb(18, 139, 162) |
| HSL | hsl(190, 80%, 35%) |
| OKLCH | oklch(58.7% 0.101 215.4) |
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 #128BA2 | 4.00:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #128BA2 | 5.24:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #128BA2 text on white | 4.00:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #128BA2 text on black | 5.24:1 | AA | Lc -34.8 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D3
oklch(81% 0.046 214.2)
-
Step 400
400
#69ACBD
oklch(70.6% 0.072 215.8)
-
Step 500
500
#3897AD
oklch(63% 0.093 216.1)
-
Step 600
600 (this color)
#128BA2
oklch(58.7% 0.101 215.4)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#0F4956
oklch(37.6% 0.06 216.6)
-
Step 950
950
#0C2B32
oklch(27% 0.038 215.2)
#128BA2 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) | #7B86A3 | 0.089 |
| Deuteranopia (no green cones) | #6979A2 | 0.080 |
| Tritanopia (no blue cones) | #009392 | 0.040 |
| Achromatopsia (no color) | #7F7F7F | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #128BA2
#128BA2
oklch(58.7% 0.101 215.4)
- #B06552
#B06552
oklch(58.7% 0.102 35.1)
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 #128BA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.011
- Blue NCS #118AB2 ΔE 0.026
- Teal Green #0A9396 ΔE 0.035
- Dark Cyan #008B8B ΔE 0.037
- Cerulean #457B9D ΔE 0.050
- Ocean #017B92 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.052
- Off Blue #5684AE ΔE 0.054
Use #128BA2 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.