#398990
Closest named color: Dark Cyan (#008B8B). oklch(58.4% 0.078 203.2), rgb(57, 137, 144).
Aa
Black text reads best on this color (5.15:1).
About this color
#398990 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.078 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.025 away. Black text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #398990 |
| RGB | rgb(57, 137, 144) |
| HSL | hsl(185, 43%, 39%) |
| OKLCH | oklch(58.4% 0.078 203.2) |
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 #398990 | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #398990 | 5.15:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #398990 text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #398990 text on black | 5.15:1 | AA | Lc -34.0 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CBDDDF
oklch(88.5% 0.019 204.8)
-
Step 300
300
#A7C8CB
oklch(81% 0.036 203.2)
-
Step 400
400
#76ABB0
oklch(70.6% 0.056 203.4)
-
Step 500
500
#50969D
oklch(63% 0.071 204)
-
Step 600
600 (this color)
#398990
oklch(58.4% 0.078 203.2)
-
Step 700
700
#216D73
oklch(49.2% 0.072 202.7)
-
Step 800
800
#1E595E
oklch(42.8% 0.06 203.1)
-
Step 900
900
#1F494D
oklch(37.7% 0.047 203.7)
-
Step 950
950
#132B2D
oklch(27.1% 0.03 202.6)
#398990 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) | #7F8491 | 0.078 |
| Deuteranopia (no green cones) | #727A90 | 0.071 |
| Tritanopia (no blue cones) | #008E8B | 0.028 |
| Achromatopsia (no color) | #7E7E7E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398990
#398990
oklch(58.4% 0.078 203.2)
- #A56966
#A56966
oklch(58.5% 0.078 22.8)
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 #398990, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.025
- Teal Green #0A9396 ΔE 0.031
- Teal Blue #01889F ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.035
- Teal #008080 ΔE 0.045
- Sea #3C9992 ΔE 0.048
- Grey Blue #647D8E ΔE 0.051
- Cerulean #457B9D ΔE 0.052
Use #398990 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.