#338AA4
Closest named color: Teal Blue (#01889F). oklch(59.3% 0.09 221.3), rgb(51, 138, 164).
Aa
Black text reads best on this color (5.31:1).
About this color
#338AA4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.090 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.022 away. Black text reads best on it, at 5.31:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #338AA4 |
| RGB | rgb(51, 138, 164) |
| HSL | hsl(194, 53%, 42%) |
| OKLCH | oklch(59.3% 0.09 221.3) |
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 #338AA4 | 3.95:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #338AA4 | 5.31:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #338AA4 text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #338AA4 text on black | 5.31:1 | AA | Lc -35.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D3
oklch(80.9% 0.04 221.2)
-
Step 400
400
#72AABD
oklch(70.6% 0.065 221.3)
-
Step 500
500
#4995AD
oklch(63.1% 0.083 221.2)
-
Step 600
600 (this color)
#338AA4
oklch(59.3% 0.09 221.3)
-
Step 700
700
#156B82
oklch(49.1% 0.084 221.1)
-
Step 800
800
#16576A
oklch(42.6% 0.07 221.9)
-
Step 900
900
#1B4856
oklch(37.7% 0.054 221.6)
-
Step 950
950
#112A32
oklch(26.9% 0.034 221.3)
#338AA4 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) | #7B87A5 | 0.074 |
| Deuteranopia (no green cones) | #6B7BA4 | 0.066 |
| Tritanopia (no blue cones) | #009292 | 0.046 |
| Achromatopsia (no color) | #808080 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338AA4
#338AA4
oklch(59.3% 0.09 221.3)
- #AC6B53
#AC6B53
oklch(59.3% 0.091 41)
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 #338AA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.022
- Blue NCS #118AB2 ΔE 0.025
- Off Blue #5684AE ΔE 0.040
- Dusty Blue #5A86AD ΔE 0.040
- Steel Blue #4682B4 ΔE 0.041
- Teal Green #0A9396 ΔE 0.042
- Cerulean #457B9D ΔE 0.043
- Cool Blue #4984B8 ΔE 0.044
Use #338AA4 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.