#33516B
Closest named color: YInMn Blue (#415A77). oklch(42.3% 0.056 245.8), rgb(51, 81, 107).
Aa
White text reads best on this color (8.30:1).
About this color
#33516B is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.056 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.037 away. White text reads best on it, at 8.30:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.53:1 |
| White text | 8.30:1 |
Values
| HEX | #33516B |
| RGB | rgb(51, 81, 107) |
| HSL | hsl(208, 35%, 31%) |
| OKLCH | oklch(42.3% 0.056 245.8) |
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 #33516B | 8.30:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #33516B | 2.53:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #33516B text on white | 8.30:1 | AAA | Lc 88.6 | Fine for body text |
| #33516B text on black | 2.53:1 | Fails | Lc -13.6 | 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
#B0C3D5
oklch(80.8% 0.033 246.8)
-
Step 400
400
#86A4C0
oklch(70.6% 0.053 246.8)
-
Step 500
500
#678EB0
oklch(63.1% 0.067 245.5)
-
Step 600
600
#4E789C
oklch(55.7% 0.073 245.5)
-
Step 700
700
#3F6585
oklch(49.2% 0.067 245.2)
-
Step 800
800 (this color)
#33516B
oklch(42.3% 0.056 245.8)
-
Step 900
900
#2E4458
oklch(37.7% 0.044 246.7)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#33516B 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) | #46516C | 0.025 |
| Deuteranopia (no green cones) | #3F4C6B | 0.021 |
| Tritanopia (no blue cones) | #18575A | 0.047 |
| Achromatopsia (no color) | #4E4E4E | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33516B
#33516B
oklch(42.3% 0.056 245.8)
- #63482B
#63482B
oklch(42.4% 0.057 67.3)
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 #33516B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.048
- Light Navy #155084 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.049
- Deep Teal #00555A ΔE 0.051
- Petrol #005F6A ΔE 0.051
Use #33516B 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.