#103259
Closest named color: Prussian Blue (#1D3557). oklch(31.5% 0.08 254.2), rgb(16, 50, 89).
Aa
White text reads best on this color (12.94:1).
About this color
#103259 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.080 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.018 away. White text reads best on it, at 12.94:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.62:1 |
| White text | 12.94:1 |
Values
| HEX | #103259 |
| RGB | rgb(16, 50, 89) |
| HSL | hsl(212, 70%, 21%) |
| OKLCH | oklch(31.5% 0.08 254.2) |
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 #103259 | 12.94:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #103259 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #103259 text on white | 12.94:1 | AAA | Lc 98.9 | Preferred for body text |
| #103259 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#96C4FD
oklch(80.9% 0.095 254.2)
-
Step 400
400
#58A3FC
oklch(70.7% 0.151 254.1)
-
Step 500
500
#1588FA
oklch(63% 0.194 254.2)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800
#004E97
oklch(42.8% 0.136 254.1)
-
Step 900
900
#00417F
oklch(37.8% 0.12 253.9)
-
Step 950
950 (this color)
#103259
oklch(31.5% 0.08 254.2)
#103259 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) | #1F355B | 0.020 |
| Deuteranopia (no green cones) | #132E58 | 0.012 |
| Tritanopia (no blue cones) | #003B41 | 0.060 |
| Achromatopsia (no color) | #313131 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103259
#103259
oklch(31.5% 0.08 254.2)
- #452C00
#452C00
oklch(31.6% 0.067 75.3)
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 #103259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.018
- Marine #042E60 ΔE 0.021
- Marine Blue #01386A ΔE 0.032
- Midnight Green #073B4C ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.050
- Gunmetal #293241 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.060
Use #103259 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.