#378A98
Closest named color: Teal Blue (#01889F). oklch(58.9% 0.082 210.4), rgb(55, 138, 152).
Aa
Black text reads best on this color (5.25:1).
About this color
#378A98 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.082 and its hue 210°. 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 5.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #378A98 |
| RGB | rgb(55, 138, 152) |
| HSL | hsl(189, 47%, 41%) |
| OKLCH | oklch(58.9% 0.082 210.4) |
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 #378A98 | 3.99:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #378A98 | 5.25:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #378A98 text on white | 3.99:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #378A98 text on black | 5.25:1 | AA | Lc -34.6 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A6C8CE
oklch(81% 0.037 209.5)
-
Step 400
400
#75ABB5
oklch(70.7% 0.058 210.4)
-
Step 500
500
#4D96A3
oklch(63.1% 0.075 210.5)
-
Step 600
600 (this color)
#378A98
oklch(58.9% 0.082 210.4)
-
Step 700
700
#1C6C79
oklch(49.1% 0.076 210.9)
-
Step 800
800
#1B5862
oklch(42.6% 0.063 210.5)
-
Step 900
900
#1D4950
oklch(37.8% 0.049 209.3)
-
Step 950
950
#132B2F
oklch(27.2% 0.031 209.5)
#378A98 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) | #7E8599 | 0.077 |
| Deuteranopia (no green cones) | #707B98 | 0.070 |
| Tritanopia (no blue cones) | #00908E | 0.034 |
| Achromatopsia (no color) | #7F7F7F | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378A98
#378A98
oklch(58.9% 0.082 210.4)
- #A86A5F
#A86A5F
oklch(58.8% 0.082 30.6)
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 #378A98, 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 0.031
- Dark Cyan #008B8B ΔE 0.032
- Dusty Teal #4C9085 ΔE 0.042
- Blue NCS #118AB2 ΔE 0.042
- Cerulean #457B9D ΔE 0.048
- Stormy Blue #507B9C ΔE 0.049
- Sea #3C9992 ΔE 0.050
Use #378A98 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.