#33445A
Closest named color: Dark Grey Blue (#29465B). oklch(38.2% 0.044 255.1), rgb(51, 68, 90).
Aa
White text reads best on this color (9.92:1).
About this color
#33445A is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.044 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.013 away. White text reads best on it, at 9.92:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #33445A |
| RGB | rgb(51, 68, 90) |
| HSL | hsl(214, 28%, 28%) |
| OKLCH | oklch(38.2% 0.044 255.1) |
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 #33445A | 9.92:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #33445A | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #33445A text on white | 9.92:1 | AAA | Lc 93.0 | Preferred for body text |
| #33445A text on black | 2.11:1 | Fails | Lc -9.5 | 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 900.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B3C2D6
oklch(80.9% 0.033 255.6)
-
Step 400
400
#8BA3C1
oklch(70.8% 0.052 254.2)
-
Step 500
500
#6E8CB2
oklch(63.2% 0.067 254.6)
-
Step 600
600
#56759E
oklch(55.6% 0.074 255.7)
-
Step 700
700
#466287
oklch(49% 0.068 255.7)
-
Step 800
800
#3A506D
oklch(42.6% 0.056 255.6)
-
Step 900
900 (this color)
#33445A
oklch(38.2% 0.044 255.1)
-
Step 950
950
#1D2734
oklch(26.9% 0.028 255.2)
#33445A 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) | #3C455B | 0.014 |
| Deuteranopia (no green cones) | #37415A | 0.011 |
| Tritanopia (no blue cones) | #25494B | 0.039 |
| Achromatopsia (no color) | #434343 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33445A
#33445A
oklch(38.2% 0.044 255.1)
- #514028
#514028
oklch(38.3% 0.044 75.4)
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 #33445A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.023
- Charcoal Grey #3C4142 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.046
- Onyx #343A40 ΔE 0.048
- Dark Teal #014D4E ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.059
Use #33445A 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.