#398EA7
Closest named color: Blue NCS (#118AB2). oklch(60.6% 0.089 220.6), rgb(57, 142, 167).
Aa
Black text reads best on this color (5.60:1).
About this color
#398EA7 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.089 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.030 away. Black text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #398EA7 |
| RGB | rgb(57, 142, 167) |
| HSL | hsl(194, 49%, 44%) |
| OKLCH | oklch(60.6% 0.089 220.6) |
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 #398EA7 | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #398EA7 | 5.60:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #398EA7 text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #398EA7 text on black | 5.60:1 | AA | Lc -36.9 | 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
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D4
oklch(81% 0.043 219.5)
-
Step 400
400
#6EABBF
oklch(70.7% 0.069 220.7)
-
Step 500
500 (this color)
#398EA7
oklch(60.6% 0.089 220.6)
-
Step 600
600
#16809B
oklch(55.7% 0.097 220.7)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#0B586B
oklch(42.7% 0.074 220.1)
-
Step 900
900
#164857
oklch(37.6% 0.058 221.6)
-
Step 950
950
#0F2B33
oklch(27.1% 0.037 219.3)
#398EA7 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) | #7F8AA8 | 0.074 |
| Deuteranopia (no green cones) | #6F7FA7 | 0.065 |
| Tritanopia (no blue cones) | #009696 | 0.046 |
| Achromatopsia (no color) | #848484 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398EA7
#398EA7
oklch(60.6% 0.089 220.6)
- #AF6F58
#AF6F58
oklch(60.5% 0.089 40.5)
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 #398EA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.030
- Teal Blue #01889F ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.039
- Teal Green #0A9396 ΔE 0.040
- Off Blue #5684AE ΔE 0.041
- Steel Blue #4682B4 ΔE 0.046
- Cool Blue #4984B8 ΔE 0.046
- Dark Cyan #008B8B ΔE 0.052
Use #398EA7 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.