#3F889D
Closest named color: Teal Blue (#01889F). oklch(58.9% 0.079 219.4), rgb(63, 136, 157).
Aa
Black text reads best on this color (5.21:1).
About this color
#3F889D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.079 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.027 away. Black text reads best on it, at 5.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.21:1 |
| White text | 4.02:1 |
Values
| HEX | #3F889D |
| RGB | rgb(63, 136, 157) |
| HSL | hsl(193, 43%, 43%) |
| OKLCH | oklch(58.9% 0.079 219.4) |
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 #3F889D | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #3F889D | 5.21:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #3F889D text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #3F889D text on black | 5.21:1 | AA | Lc -34.4 | 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
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CCDDE2
oklch(88.6% 0.02 217.2)
-
Step 300
300
#A8C7D0
oklch(81% 0.036 217.2)
-
Step 400
400
#78A9B9
oklch(70.6% 0.057 220.2)
-
Step 500
500
#5394A8
oklch(63.1% 0.073 220)
-
Step 600
600 (this color)
#3F889D
oklch(58.9% 0.079 219.4)
-
Step 700
700
#266A7D
oklch(49% 0.073 219.8)
-
Step 800
800
#215766
oklch(42.8% 0.061 219.2)
-
Step 900
900
#214853
oklch(37.8% 0.048 218.6)
-
Step 950
950
#142A30
oklch(27% 0.03 217.4)
#3F889D 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) | #7B859E | 0.067 |
| Deuteranopia (no green cones) | #6D7A9D | 0.060 |
| Tritanopia (no blue cones) | #008F8F | 0.044 |
| Achromatopsia (no color) | #7F7F7F | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F889D
#3F889D
oklch(58.9% 0.079 219.4)
- #A66D59
#A66D59
oklch(59% 0.079 40.1)
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 #3F889D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.027
- Blue NCS #118AB2 ΔE 0.036
- Cerulean #457B9D ΔE 0.039
- Stormy Blue #507B9C ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.039
- Off Blue #5684AE ΔE 0.040
- Teal Green #0A9396 ΔE 0.043
- Dark Cyan #008B8B ΔE 0.044
Use #3F889D 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.