#3D8591
Closest named color: Teal Blue (#01889F). oklch(57.6% 0.074 209.9), rgb(61, 133, 145).
Aa
Black text reads best on this color (4.96:1).
About this color
#3D8591 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.074 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.029 away. Black text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #3D8591 |
| RGB | rgb(61, 133, 145) |
| HSL | hsl(189, 41%, 40%) |
| OKLCH | oklch(57.6% 0.074 209.9) |
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 #3D8591 | 4.23:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #3D8591 | 4.96:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #3D8591 text on white | 4.23:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #3D8591 text on black | 4.96:1 | AA | Lc -32.6 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDE0
oklch(88.6% 0.019 209.4)
-
Step 300
300
#A9C7CC
oklch(80.9% 0.033 208.8)
-
Step 400
400
#7AAAB3
oklch(70.7% 0.053 210.4)
-
Step 500
500
#5595A0
oklch(63.1% 0.068 209.7)
-
Step 600
600 (this color)
#3D8591
oklch(57.6% 0.074 209.9)
-
Step 700
700
#286B76
oklch(49% 0.069 210.1)
-
Step 800
800
#235760
oklch(42.6% 0.057 210.6)
-
Step 900
900
#22484E
oklch(37.6% 0.044 208.8)
-
Step 950
950
#152A2E
oklch(26.9% 0.028 211.1)
#3D8591 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) | #7A8192 | 0.069 |
| Deuteranopia (no green cones) | #6E7791 | 0.064 |
| Tritanopia (no blue cones) | #008B89 | 0.035 |
| Achromatopsia (no color) | #7B7B7B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D8591
#3D8591
oklch(57.6% 0.074 209.9)
- #A0685F
#A0685F
oklch(57.5% 0.074 29.5)
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 #3D8591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.029
- Dark Cyan #008B8B ΔE 0.033
- Cerulean #457B9D ΔE 0.040
- Stormy Blue #507B9C ΔE 0.042
- Teal Green #0A9396 ΔE 0.043
- Grey Blue #647D8E ΔE 0.043
- Teal #008080 ΔE 0.044
- Ocean #017B92 ΔE 0.045
Use #3D8591 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.