#102F61
Closest named color: Marine (#042E60). oklch(31.4% 0.096 259.7), rgb(16, 47, 97).
Aa
White text reads best on this color (13.11:1).
About this color
#102F61 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.096 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.010 away. White text reads best on it, at 13.11:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.60:1 |
| White text | 13.11:1 |
Values
| HEX | #102F61 |
| RGB | rgb(16, 47, 97) |
| HSL | hsl(217, 72%, 22%) |
| OKLCH | oklch(31.4% 0.096 259.7) |
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 #102F61 | 13.11:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #102F61 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #102F61 text on white | 13.11:1 | AAA | Lc 99.1 | Preferred for body text |
| #102F61 text on black | 1.60:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DBFF
oklch(88.6% 0.056 259.3)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#65A0FF
oklch(70.8% 0.153 259.5)
-
Step 500
500
#3784FF
oklch(63.2% 0.198 259.6)
-
Step 600
600
#0068F2
oklch(55.6% 0.223 259.6)
-
Step 700
700
#0057CD
oklch(49.1% 0.196 259.6)
-
Step 800
800
#0047AA
oklch(42.8% 0.171 259.6)
-
Step 900
900
#003A90
oklch(37.6% 0.152 259.9)
-
Step 950
950 (this color)
#102F61
oklch(31.4% 0.096 259.7)
#102F61 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) | #123463 | 0.016 |
| Deuteranopia (no green cones) | #002D60 | 0.014 |
| Tritanopia (no blue cones) | #003B43 | 0.075 |
| Achromatopsia (no color) | #303030 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102F61
#102F61
oklch(31.4% 0.096 259.7)
- #422D00
#422D00
oklch(31.4% 0.065 80.7)
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 #102F61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.010
- Marine Blue #01386A ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.032
- Midnight Green #073B4C ΔE 0.060
- Midnight Blue #191970 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.063
- Gunmetal #293241 ΔE 0.066
Use #102F61 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.