#398A99
Closest named color: Teal Blue (#01889F). oklch(59% 0.081 211.7), rgb(57, 138, 153).
Aa
Black text reads best on this color (5.26:1).
About this color
#398A99 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.081 and its hue 212°. 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 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #398A99 |
| RGB | rgb(57, 138, 153) |
| HSL | hsl(189, 46%, 41%) |
| OKLCH | oklch(59% 0.081 211.7) |
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 #398A99 | 3.98:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #398A99 | 5.26:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #398A99 text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #398A99 text on black | 5.26:1 | AA | Lc -34.7 | 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
#A7C7CE
oklch(80.8% 0.036 212.4)
-
Step 400
400
#75ABB6
oklch(70.7% 0.059 211.7)
-
Step 500
500
#4E96A3
oklch(63.2% 0.074 210.7)
-
Step 600
600 (this color)
#398A99
oklch(59% 0.081 211.7)
-
Step 700
700
#1E6C79
oklch(49.1% 0.075 211.1)
-
Step 800
800
#1C5863
oklch(42.7% 0.063 212.1)
-
Step 900
900
#1E4850
oklch(37.5% 0.048 211.8)
-
Step 950
950
#132A2F
oklch(26.9% 0.03 213.4)
#398A99 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) | #7E859A | 0.075 |
| Deuteranopia (no green cones) | #707B99 | 0.068 |
| Tritanopia (no blue cones) | #00908F | 0.035 |
| Achromatopsia (no color) | #7F7F7F | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398A99
#398A99
oklch(59% 0.081 211.7)
- #A86B5F
#A86B5F
oklch(59% 0.081 31.7)
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 #398A99, 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 0.033
- Dark Cyan #008B8B ΔE 0.034
- Blue NCS #118AB2 ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.043
- Cerulean #457B9D ΔE 0.047
- Stormy Blue #507B9C ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.049
Use #398A99 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.