#104D70
Closest named color: Deep Sea Blue (#015482). oklch(40.1% 0.083 239.9), rgb(16, 77, 112).
Aa
White text reads best on this color (9.06:1).
About this color
#104D70 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.083 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.033 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #104D70 |
| RGB | rgb(16, 77, 112) |
| HSL | hsl(202, 75%, 25%) |
| OKLCH | oklch(40.1% 0.083 239.9) |
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 #104D70 | 9.06:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #104D70 | 2.31:1 | Fails | Lc 13.5 | Not readable |
| #104D70 text on white | 9.06:1 | AAA | Lc 90.5 | Preferred for body text |
| #104D70 text on black | 2.31:1 | Fails | Lc -11.8 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C5DDEE
oklch(88.5% 0.035 238.7)
-
Step 300
300
#9CC7E5
oklch(80.9% 0.062 239)
-
Step 400
400
#62A9D9
oklch(70.7% 0.101 239.9)
-
Step 500
500
#2C92CE
oklch(63% 0.128 239.9)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900 (this color)
#104D70
oklch(40.1% 0.083 239.9)
-
Step 950
950
#08293D
oklch(26.9% 0.053 239.9)
#104D70 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) | #3C4D72 | 0.042 |
| Deuteranopia (no green cones) | #2F456F | 0.033 |
| Tritanopia (no blue cones) | #005659 | 0.056 |
| Achromatopsia (no color) | #494949 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104D70
#104D70
oklch(40.1% 0.083 239.9)
- #683C11
#683C11
oklch(40.2% 0.083 60.2)
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 #104D70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.033
- Light Navy #155084 ΔE 0.034
- Twilight Blue #0A437A ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.049
- Deep Teal #00555A ΔE 0.052
- Dusk Blue #26538D ΔE 0.054
- Cobalt #1E488F ΔE 0.058
Use #104D70 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.