#33677D
Closest named color: Denim (#3B638C). oklch(48.7% 0.066 228), rgb(51, 103, 125).
Aa
White text reads best on this color (6.21:1).
About this color
#33677D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.066 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.032 away. White text reads best on it, at 6.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.37:1 |
| White text | 6.21:1 |
Values
| HEX | #33677D |
| RGB | rgb(51, 103, 125) |
| HSL | hsl(198, 42%, 35%) |
| OKLCH | oklch(48.7% 0.066 228) |
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 #33677D | 6.21:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #33677D | 3.37:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #33677D text on white | 6.21:1 | AA | Lc 80.8 | Fine for body text |
| #33677D text on black | 3.37:1 | AA large text | Lc -21.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ACC5D1
oklch(80.9% 0.032 228.3)
-
Step 400
400
#80A7BA
oklch(70.6% 0.051 229.3)
-
Step 500
500
#5E92A9
oklch(63.2% 0.065 227.8)
-
Step 600
600
#437C94
oklch(55.7% 0.07 227.5)
-
Step 700
700 (this color)
#33677D
oklch(48.7% 0.066 228)
-
Step 800
800
#2C5566
oklch(42.7% 0.054 227.1)
-
Step 900
900
#284653
oklch(37.6% 0.042 227.6)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#33677D 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) | #5B657E | 0.048 |
| Deuteranopia (no green cones) | #515D7D | 0.043 |
| Tritanopia (no blue cones) | #006D6E | 0.044 |
| Achromatopsia (no color) | #616161 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33677D
#33677D
oklch(48.7% 0.066 228)
- #7E543E
#7E543E
oklch(48.6% 0.066 48.4)
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 #33677D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.032
- Slate #516572 ΔE 0.035
- YInMn Blue #415A77 ΔE 0.039
- Dark Aqua #05696B ΔE 0.043
- Peacock Blue #016795 ΔE 0.044
- Sea Blue #047495 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.049
Use #33677D 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.