#398CAA
Closest named color: Blue NCS (#118AB2). oklch(60.2% 0.091 225.3), rgb(57, 140, 170).
Aa
Black text reads best on this color (5.50:1).
About this color
#398CAA is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.091 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.024 away. Black text reads best on it, at 5.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #398CAA |
| RGB | rgb(57, 140, 170) |
| HSL | hsl(196, 50%, 45%) |
| OKLCH | oklch(60.2% 0.091 225.3) |
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 #398CAA | 3.81:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #398CAA | 5.50:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #398CAA text on white | 3.81:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #398CAA text on black | 5.50:1 | AA | Lc -36.3 | 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
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A3C7D7
oklch(80.9% 0.045 226.7)
-
Step 400
400
#6EAAC2
oklch(70.6% 0.071 225.3)
-
Step 500
500 (this color)
#398CAA
oklch(60.2% 0.091 225.3)
-
Step 600
600
#197F9F
oklch(55.7% 0.099 225.1)
-
Step 700
700
#056B88
oklch(49.1% 0.092 225.2)
-
Step 800
800
#0E576E
oklch(42.6% 0.076 225.2)
-
Step 900
900
#174859
oklch(37.7% 0.059 224.8)
-
Step 950
950
#0F2A34
oklch(26.9% 0.038 225.1)
#398CAA 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) | #7C89AC | 0.071 |
| Deuteranopia (no green cones) | #6C7EAA | 0.061 |
| Tritanopia (no blue cones) | #009596 | 0.052 |
| Achromatopsia (no color) | #838383 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398CAA
#398CAA
oklch(60.2% 0.091 225.3)
- #AE6F52
#AE6F52
oklch(60.2% 0.091 45.3)
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 #398CAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.024
- Teal Blue #01889F ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.034
- Off Blue #5684AE ΔE 0.034
- Steel Blue #4682B4 ΔE 0.037
- Cool Blue #4984B8 ΔE 0.038
- Teal Green #0A9396 ΔE 0.047
- Cerulean #457B9D ΔE 0.048
Use #398CAA 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.