#338EA4
Closest named color: Teal Blue (#01889F). oklch(60.3% 0.09 217), rgb(51, 142, 164).
Aa
Black text reads best on this color (5.54:1).
About this color
#338EA4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.090 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.028 away. Black text reads best on it, at 5.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #338EA4 |
| RGB | rgb(51, 142, 164) |
| HSL | hsl(192, 53%, 42%) |
| OKLCH | oklch(60.3% 0.09 217) |
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 #338EA4 | 3.78:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #338EA4 | 5.54:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #338EA4 text on white | 3.78:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #338EA4 text on black | 5.54:1 | AA | Lc -36.6 | 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 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
#C8DDE4
oklch(88.4% 0.024 219.7)
-
Step 300
300
#A1C8D3
oklch(80.8% 0.044 216.8)
-
Step 400
400
#6CACBD
oklch(70.8% 0.07 216.5)
-
Step 500
500 (this color)
#338EA4
oklch(60.3% 0.09 217)
-
Step 600
600
#078198
oklch(55.6% 0.098 216.3)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#03596A
oklch(42.8% 0.075 216.8)
-
Step 900
900
#134956
oklch(37.7% 0.059 217.4)
-
Step 950
950
#0D2B32
oklch(27% 0.037 215.6)
#338EA4 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) | #7F8AA5 | 0.078 |
| Deuteranopia (no green cones) | #6F7EA4 | 0.070 |
| Tritanopia (no blue cones) | #009695 | 0.042 |
| Achromatopsia (no color) | #838383 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338EA4
#338EA4
oklch(60.3% 0.09 217)
- #B06D5A
#B06D5A
oklch(60.3% 0.091 36.6)
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 #338EA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.028
- Blue NCS #118AB2 ΔE 0.031
- Teal Green #0A9396 ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.044
- Dark Cyan #008B8B ΔE 0.045
- Off Blue #5684AE ΔE 0.046
- Sea #3C9992 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.050
Use #338EA4 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.