#338599
Closest named color: Teal Blue (#01889F). oklch(57.5% 0.083 216.9), rgb(51, 133, 153).
Aa
Black text reads best on this color (4.95:1).
About this color
#338599 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.083 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.019 away. Black text reads best on it, at 4.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #338599 |
| RGB | rgb(51, 133, 153) |
| HSL | hsl(192, 50%, 40%) |
| OKLCH | oklch(57.5% 0.083 216.9) |
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 #338599 | 4.23:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #338599 | 4.95:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #338599 text on white | 4.23:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #338599 text on black | 4.95:1 | AA | Lc -32.7 | 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
#CBDDE2
oklch(88.6% 0.021 216.2)
-
Step 300
300
#A6C7D0
oklch(80.8% 0.038 216.1)
-
Step 400
400
#75AAB9
oklch(70.6% 0.06 217.4)
-
Step 500
500
#4D95A8
oklch(63.1% 0.077 217.2)
-
Step 600
600 (this color)
#338599
oklch(57.5% 0.083 216.9)
-
Step 700
700
#1D6B7D
oklch(49% 0.078 216.9)
-
Step 800
800
#1B5766
oklch(42.6% 0.065 217.8)
-
Step 900
900
#1E4853
oklch(37.7% 0.05 217.5)
-
Step 950
950
#132A31
oklch(27% 0.032 219.8)
#338599 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) | #78819A | 0.073 |
| Deuteranopia (no green cones) | #697699 | 0.066 |
| Tritanopia (no blue cones) | #008C8B | 0.040 |
| Achromatopsia (no color) | #7B7B7B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338599
#338599
oklch(57.5% 0.083 216.9)
- #A46755
#A46755
oklch(57.6% 0.084 37.2)
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 #338599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.019
- Cerulean #457B9D ΔE 0.034
- Dark Cyan #008B8B ΔE 0.038
- Stormy Blue #507B9C ΔE 0.038
- Blue NCS #118AB2 ΔE 0.038
- Ocean #017B92 ΔE 0.040
- Teal Green #0A9396 ΔE 0.045
- Teal #008080 ΔE 0.048
Use #338599 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.