#23384B
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.2% 0.043 246.8), rgb(35, 56, 75).
Aa
White text reads best on this color (12.07:1).
About this color
#23384B is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.043 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.010 away. White text reads best on it, at 12.07:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #23384B |
| RGB | rgb(35, 56, 75) |
| HSL | hsl(209, 36%, 22%) |
| OKLCH | oklch(33.2% 0.043 246.8) |
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 #23384B | 12.07:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #23384B | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #23384B text on white | 12.07:1 | AAA | Lc 97.6 | Preferred for body text |
| #23384B text on black | 1.73:1 | Fails | Lc 0.0 | 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
#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
#87A4C0
oklch(70.7% 0.052 247.7)
-
Step 500
500
#698EB0
oklch(63.2% 0.066 246.8)
-
Step 600
600
#50779B
oklch(55.5% 0.071 247.3)
-
Step 700
700
#406485
oklch(49% 0.068 247.3)
-
Step 800
800
#35526C
oklch(42.7% 0.056 246.6)
-
Step 900
900 (this color)
#23384B
oklch(33.2% 0.043 246.8)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#23384B 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) | #30384C | 0.019 |
| Deuteranopia (no green cones) | #2B344B | 0.016 |
| Tritanopia (no blue cones) | #113C3E | 0.036 |
| Achromatopsia (no color) | #363636 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23384B
#23384B
oklch(33.2% 0.043 246.8)
- #45311D
#45311D
oklch(33.1% 0.043 65.4)
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 #23384B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.010
- Gunmetal #293241 ΔE 0.023
- Midnight Green #073B4C ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.027
- Onyx #343A40 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.036
- Charcoal #264653 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.050
Use #23384B 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.