#398090
Closest named color: Cerulean (#457B9D). oklch(56.1% 0.075 214.7), rgb(57, 128, 144).
Aa
Black text reads best on this color (4.66:1).
About this color
#398090 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.075 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.031 away. Black text reads best on it, at 4.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #398090 |
| RGB | rgb(57, 128, 144) |
| HSL | hsl(191, 43%, 39%) |
| OKLCH | oklch(56.1% 0.075 214.7) |
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 #398090 | 4.50:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #398090 | 4.66:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #398090 text on white | 4.50:1 | AA | Lc 71.1 | Content text, not long reading |
| #398090 text on black | 4.66:1 | AA | Lc -30.6 | 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
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDDE1
oklch(88.6% 0.019 213.4)
-
Step 300
300
#A9C7CE
oklch(81% 0.034 213.4)
-
Step 400
400
#7AAAB5
oklch(70.8% 0.053 213.5)
-
Step 500
500
#5594A3
oklch(63% 0.069 214.8)
-
Step 600
600 (this color)
#398090
oklch(56.1% 0.075 214.7)
-
Step 700
700
#296B79
oklch(49.2% 0.069 214.1)
-
Step 800
800
#245762
oklch(42.7% 0.057 214)
-
Step 900
900
#234850
oklch(37.8% 0.044 213.4)
-
Step 950
950
#152A2F
oklch(27% 0.028 214.7)
#398090 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) | #757C91 | 0.068 |
| Deuteranopia (no green cones) | #687290 | 0.062 |
| Tritanopia (no blue cones) | #008685 | 0.037 |
| Achromatopsia (no color) | #777777 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398090
#398090
oklch(56.1% 0.075 214.7)
- #9B6557
#9B6557
oklch(56.1% 0.074 35.2)
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 #398090, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.031
- Teal Blue #01889F ΔE 0.032
- Ocean #017B92 ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
- Teal #008080 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.041
- Dark Cyan #008B8B ΔE 0.041
- Grey Blue #647D8E ΔE 0.044
Use #398090 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.