#23344F
Closest named color: Prussian Blue (#1D3557). oklch(32.4% 0.053 259.4), rgb(35, 52, 79).
Aa
White text reads best on this color (12.53:1).
About this color
#23344F is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.053 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.015 away. White text reads best on it, at 12.53:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.67:1 |
| White text | 12.53:1 |
Values
| HEX | #23344F |
| RGB | rgb(35, 52, 79) |
| HSL | hsl(217, 39%, 22%) |
| OKLCH | oklch(32.4% 0.053 259.4) |
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 #23344F | 12.53:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #23344F | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #23344F text on white | 12.53:1 | AAA | Lc 98.4 | Preferred for body text |
| #23344F text on black | 1.67:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B2C2DB
oklch(81% 0.04 259.3)
-
Step 400
400
#89A2C9
oklch(70.7% 0.064 259.2)
-
Step 500
500
#6C8ABB
oklch(63% 0.082 260)
-
Step 600
600
#5374A7
oklch(55.6% 0.089 258.9)
-
Step 700
700
#446190
oklch(49.1% 0.083 259.7)
-
Step 800
800
#384F74
oklch(42.6% 0.068 259.6)
-
Step 900
900 (this color)
#23344F
oklch(32.4% 0.053 259.4)
-
Step 950
950
#1C2737
oklch(27% 0.034 257.7)
#23344F 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) | #2A3650 | 0.013 |
| Deuteranopia (no green cones) | #24324E | 0.006 |
| Tritanopia (no blue cones) | #0E3A3E | 0.047 |
| Achromatopsia (no color) | #343434 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23344F
#23344F
oklch(32.4% 0.053 259.4)
- #423010
#423010
oklch(32.3% 0.053 79.2)
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 #23344F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.024
- Gunmetal #293241 ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.029
- Midnight Green #073B4C ΔE 0.033
- Onyx #343A40 ΔE 0.046
- Marine #042E60 ΔE 0.049
- Marine Blue #01386A ΔE 0.051
Use #23344F 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.