#3B6879
Closest named color: Slate (#516572). oklch(49.2% 0.056 224.4), rgb(59, 104, 121).
Aa
White text reads best on this color (6.10:1).
About this color
#3B6879 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.056 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.026 away. White text reads best on it, at 6.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #3B6879 |
| RGB | rgb(59, 104, 121) |
| HSL | hsl(196, 34%, 35%) |
| OKLCH | oklch(49.2% 0.056 224.4) |
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 #3B6879 | 6.10:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #3B6879 | 3.44:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #3B6879 text on white | 6.10:1 | AA | Lc 80.4 | Fine for body text |
| #3B6879 text on black | 3.44:1 | AA large text | Lc -21.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC5CE
oklch(81% 0.027 224.3)
-
Step 400
400
#84A7B5
oklch(70.7% 0.043 224.3)
-
Step 500
500
#6491A3
oklch(63.1% 0.056 224.9)
-
Step 600
600
#4A7B8E
oklch(55.6% 0.061 224.8)
-
Step 700
700 (this color)
#3B6879
oklch(49.2% 0.056 224.4)
-
Step 800
800
#315562
oklch(42.8% 0.047 223.2)
-
Step 900
900
#2C4650
oklch(37.7% 0.036 224.2)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#3B6879 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) | #5F667A | 0.045 |
| Deuteranopia (no green cones) | #555F79 | 0.040 |
| Tritanopia (no blue cones) | #1A6D6D | 0.038 |
| Achromatopsia (no color) | #626262 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B6879
#3B6879
oklch(49.2% 0.056 224.4)
- #7C5746
#7C5746
oklch(49.2% 0.056 45.6)
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 #3B6879, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.026
- Denim #3B638C ΔE 0.039
- YInMn Blue #415A77 ΔE 0.042
- Dark Aqua #05696B ΔE 0.043
- Deep Turquoise #017374 ΔE 0.046
- Dark Aquamarine #017371 ΔE 0.049
- Metallic Blue #4F738E ΔE 0.050
- Deep Aqua #08787F ΔE 0.051
Use #3B6879 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.