#33516D
Closest named color: YInMn Blue (#415A77). oklch(42.4% 0.059 247.7), rgb(51, 81, 109).
Aa
White text reads best on this color (8.27:1).
About this color
#33516D is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.059 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.036 away. White text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #33516D |
| RGB | rgb(51, 81, 109) |
| HSL | hsl(209, 36%, 31%) |
| OKLCH | oklch(42.4% 0.059 247.7) |
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 #33516D | 8.27:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #33516D | 2.53:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #33516D text on white | 8.27:1 | AAA | Lc 88.5 | Fine for body text |
| #33516D text on black | 2.53:1 | Fails | Lc -13.7 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE5
oklch(88.6% 0.018 245.4)
-
Step 300
300
#B0C3D6
oklch(80.9% 0.034 248.2)
-
Step 400
400
#86A4C2
oklch(70.7% 0.055 248.6)
-
Step 500
500
#678EB2
oklch(63.2% 0.07 247)
-
Step 600
600
#4E779E
oklch(55.5% 0.076 248.2)
-
Step 700
700
#3E6487
oklch(49% 0.071 247.5)
-
Step 800
800 (this color)
#33516D
oklch(42.4% 0.059 247.7)
-
Step 900
900
#2D4459
oklch(37.7% 0.046 246.9)
-
Step 950
950
#1B2834
oklch(27.1% 0.029 246.9)
#33516D 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) | #45526E | 0.024 |
| Deuteranopia (no green cones) | #3E4C6C | 0.019 |
| Tritanopia (no blue cones) | #16585B | 0.050 |
| Achromatopsia (no color) | #4E4E4E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33516D
#33516D
oklch(42.4% 0.059 247.7)
- #644829
#644829
oklch(42.5% 0.059 67.9)
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 #33516D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.044
- Light Navy #155084 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.051
- Dusk #4E5481 ΔE 0.052
- Petrol #005F6A ΔE 0.052
Use #33516D 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.