#1F324F
Closest named color: Prussian Blue (#1D3557). oklch(31.6% 0.058 258.6), rgb(31, 50, 79).
Aa
White text reads best on this color (12.90:1).
About this color
#1F324F is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.058 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 12.90:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.62:1 |
| White text | 12.90:1 |
Values
| HEX | #1F324F |
| RGB | rgb(31, 50, 79) |
| HSL | hsl(216, 44%, 22%) |
| OKLCH | oklch(31.6% 0.058 258.6) |
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 #1F324F | 12.90:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #1F324F | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #1F324F text on white | 12.90:1 | AAA | Lc 99.0 | Preferred for body text |
| #1F324F text on black | 1.62:1 | 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 950.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2ED
oklch(80.8% 0.068 258.9)
-
Step 400
400
#76A2E5
oklch(70.8% 0.11 258.6)
-
Step 500
500
#5289DD
oklch(63.1% 0.14 258.6)
-
Step 600
600
#3571CB
oklch(55.6% 0.153 258.5)
-
Step 700
700
#285EAF
oklch(49% 0.141 258.6)
-
Step 800
800
#224D8E
oklch(42.6% 0.118 258.6)
-
Step 900
900
#214171
oklch(37.7% 0.091 258.4)
-
Step 950
950 (this color)
#1F324F
oklch(31.6% 0.058 258.6)
#1F324F 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) | #263450 | 0.012 |
| Deuteranopia (no green cones) | #20304E | 0.006 |
| Tritanopia (no blue cones) | #03383C | 0.052 |
| Achromatopsia (no color) | #323232 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F324F
#1F324F
oklch(31.6% 0.058 258.6)
- #422E09
#422E09
oklch(31.7% 0.058 78.6)
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 #1F324F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.015
- Gunmetal #293241 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.031
- Midnight Green #073B4C ΔE 0.035
- Marine #042E60 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.049
- Marine Blue #01386A ΔE 0.050
Use #1F324F 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.