#313754
Closest named color: Prussian Blue (#1D3557). oklch(34.5% 0.052 274.5), rgb(49, 55, 84).
Aa
White text reads best on this color (11.63:1).
About this color
#313754 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.052 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.030 away. White text reads best on it, at 11.63:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.80:1 |
| White text | 11.63:1 |
Values
| HEX | #313754 |
| RGB | rgb(49, 55, 84) |
| HSL | hsl(230, 26%, 26%) |
| OKLCH | oklch(34.5% 0.052 274.5) |
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 #313754 | 11.63:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #313754 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #313754 text on white | 11.63:1 | AAA | Lc 96.7 | Preferred for body text |
| #313754 text on black | 1.80:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B9BFDA
oklch(80.9% 0.039 275.6)
-
Step 400
400
#959EC8
oklch(70.7% 0.062 275.3)
-
Step 500
500
#7B86BA
oklch(63.1% 0.079 274.7)
-
Step 600
600
#646FA6
oklch(55.6% 0.087 274.6)
-
Step 700
700
#535D8E
oklch(49.1% 0.08 274.3)
-
Step 800
800
#444C73
oklch(42.7% 0.066 274.4)
-
Step 900
900 (this color)
#313754
oklch(34.5% 0.052 274.5)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#313754 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) | #2D3A55 | 0.010 |
| Deuteranopia (no green cones) | #2B3753 | 0.009 |
| Tritanopia (no blue cones) | #263D41 | 0.047 |
| Achromatopsia (no color) | #393939 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313754
#313754
oklch(34.5% 0.052 274.5)
- #423917
#423917
oklch(34.6% 0.052 94.7)
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 #313754, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.031
- Gunmetal #293241 ΔE 0.038
- Onyx #343A40 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.046
- Midnight Green #073B4C ΔE 0.048
- Charcoal #264653 ΔE 0.050
Use #313754 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.