#102F47
Closest named color: Oxford Blue (#1B263B). oklch(29.5% 0.057 245), rgb(16, 47, 71).
Aa
White text reads best on this color (13.81:1).
About this color
#102F47 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.057 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.033 away. White text reads best on it, at 13.81:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.51:1 |
| White text | 13.81:1 |
Values
| HEX | #102F47 |
| RGB | rgb(16, 47, 71) |
| HSL | hsl(206, 63%, 17%) |
| OKLCH | oklch(29.5% 0.057 245) |
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 #102F47 | 13.81:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #102F47 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #102F47 text on white | 13.81:1 | AAA | Lc 100.2 | Preferred for body text |
| #102F47 text on black | 1.51:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C5DCF1
oklch(88.4% 0.038 245.8)
-
Step 300
300
#9CC6EA
oklch(80.9% 0.068 244.6)
-
Step 400
400
#63A7DF
oklch(70.6% 0.108 245)
-
Step 500
500
#2F90D7
oklch(63.1% 0.138 245.1)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A1
oklch(49% 0.124 245.1)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#08456E
oklch(37.7% 0.09 245.2)
-
Step 950
950 (this color)
#102F47
oklch(29.5% 0.057 245)
#102F47 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) | #243048 | 0.025 |
| Deuteranopia (no green cones) | #1D2A47 | 0.020 |
| Tritanopia (no blue cones) | #003537 | 0.043 |
| Achromatopsia (no color) | #2D2D2D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102F47
#102F47
oklch(29.5% 0.057 245)
- #402609
#402609
oklch(29.6% 0.057 64.8)
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 #102F47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.035
- Gunmetal #293241 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.037
- Midnight Green #073B4C ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.045
- Marine #042E60 ΔE 0.046
- Dark #1B2431 ΔE 0.048
Use #102F47 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.