#104A6A
Closest named color: Dark Grey Blue (#29465B). oklch(39% 0.079 238.6), rgb(16, 74, 106).
Aa
White text reads best on this color (9.50:1).
About this color
#104A6A is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.079 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 9.50:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.20:1 |
| White text | 9.50:1 |
Values
| HEX | #104A6A |
| RGB | rgb(16, 74, 106) |
| HSL | hsl(201, 74%, 24%) |
| OKLCH | oklch(39% 0.079 238.6) |
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 #104A6A | 9.50:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #104A6A | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #104A6A text on white | 9.50:1 | AAA | Lc 91.6 | Preferred for body text |
| #104A6A text on black | 2.20:1 | Fails | Lc -10.7 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDED
oklch(88.5% 0.033 238.2)
-
Step 300
300
#9EC7E3
oklch(81% 0.059 238.3)
-
Step 400
400
#65A9D5
oklch(70.7% 0.095 238.5)
-
Step 500
500
#3393CA
oklch(63.2% 0.12 238.4)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900 (this color)
#104A6A
oklch(39% 0.079 238.6)
-
Step 950
950
#0A293C
oklch(26.9% 0.05 239.7)
#104A6A 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) | #3B4A6B | 0.043 |
| Deuteranopia (no green cones) | #2F4269 | 0.034 |
| Tritanopia (no blue cones) | #005255 | 0.051 |
| Achromatopsia (no color) | #464646 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104A6A
#104A6A
oklch(39% 0.079 238.6)
- #633913
#633913
oklch(38.9% 0.078 58.9)
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 #104A6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Twilight Blue #0A437A ΔE 0.039
- Charcoal #264653 ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.045
- Light Navy #155084 ΔE 0.045
- Deep Teal #00555A ΔE 0.051
- Dark Teal #014D4E ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.058
Use #104A6A 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.