#398FA6
Closest named color: Blue NCS (#118AB2). oklch(60.8% 0.088 218.6), rgb(57, 143, 166).
Aa
Black text reads best on this color (5.65:1).
About this color
#398FA6 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.088 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.033 away. Black text reads best on it, at 5.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #398FA6 |
| RGB | rgb(57, 143, 166) |
| HSL | hsl(193, 49%, 44%) |
| OKLCH | oklch(60.8% 0.088 218.6) |
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 #398FA6 | 3.71:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #398FA6 | 5.65:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #398FA6 text on white | 3.71:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #398FA6 text on black | 5.65:1 | AA | Lc -37.2 | 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 500.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A2C8D3
oklch(80.9% 0.043 217.3)
-
Step 400
400
#6EABBE
oklch(70.7% 0.069 219.6)
-
Step 500
500 (this color)
#398FA6
oklch(60.8% 0.088 218.6)
-
Step 600
600
#148099
oklch(55.6% 0.096 218.8)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#0A586A
oklch(42.6% 0.074 218.8)
-
Step 900
900
#154956
oklch(37.8% 0.058 217.9)
-
Step 950
950
#0F2B32
oklch(27.1% 0.036 216.6)
#398FA6 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) | #808BA7 | 0.075 |
| Deuteranopia (no green cones) | #7180A6 | 0.067 |
| Tritanopia (no blue cones) | #009796 | 0.044 |
| Achromatopsia (no color) | #858585 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398FA6
#398FA6
oklch(60.8% 0.088 218.6)
- #B0705B
#B0705B
oklch(60.8% 0.088 38.9)
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 #398FA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.033
- Teal Blue #01889F ΔE 0.034
- Teal Green #0A9396 ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.041
- Off Blue #5684AE ΔE 0.044
- Steel Blue #4682B4 ΔE 0.049
- Sea #3C9992 ΔE 0.049
- Cool Blue #4984B8 ΔE 0.050
Use #398FA6 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.