#335666
Closest named color: YInMn Blue (#415A77). oklch(43.3% 0.048 228.9), rgb(51, 86, 102).
Aa
White text reads best on this color (7.88:1).
About this color
#335666 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.048 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.035 away. White text reads best on it, at 7.88:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #335666 |
| RGB | rgb(51, 86, 102) |
| HSL | hsl(199, 33%, 30%) |
| OKLCH | oklch(43.3% 0.048 228.9) |
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 #335666 | 7.88:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #335666 | 2.66:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #335666 text on white | 7.88:1 | AAA | Lc 87.3 | Fine for body text |
| #335666 text on black | 2.66:1 | Fails | Lc -14.8 | Not readable |
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 800.
-
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
#AFC5CF
oklch(81% 0.028 226.9)
-
Step 400
400
#84A7B7
oklch(70.8% 0.045 227.5)
-
Step 500
500
#6491A6
oklch(63.2% 0.058 228.8)
-
Step 600
600
#4A7B91
oklch(55.7% 0.063 228.5)
-
Step 700
700
#3B677B
oklch(49% 0.058 229)
-
Step 800
800 (this color)
#335666
oklch(43.3% 0.048 228.9)
-
Step 900
900
#2C4652
oklch(37.8% 0.038 228.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#335666 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) | #4E5567 | 0.036 |
| Deuteranopia (no green cones) | #464F66 | 0.031 |
| Tritanopia (no blue cones) | #1B5B5B | 0.035 |
| Achromatopsia (no color) | #515151 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #335666
#335666
oklch(43.3% 0.048 228.9)
- #674939
#674939
oklch(43.4% 0.048 49.1)
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 #335666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.035
- Petrol #005F6A ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.040
- Deep Teal #00555A ΔE 0.042
- Dusty Grape #545775 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.057
Use #335666 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.