#104D63
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.069 227.5), rgb(16, 77, 99).
Aa
White text reads best on this color (9.27:1).
About this color
#104D63 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.069 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #104D63 |
| RGB | rgb(16, 77, 99) |
| HSL | hsl(196, 72%, 23%) |
| OKLCH | oklch(39.4% 0.069 227.5) |
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 #104D63 | 9.27:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #104D63 | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #104D63 text on white | 9.27:1 | AAA | Lc 91.1 | Preferred for body text |
| #104D63 text on black | 2.26:1 | Fails | Lc -11.3 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE8
oklch(88.4% 0.029 228.1)
-
Step 300
300
#9EC8DB
oklch(80.9% 0.052 227.3)
-
Step 400
400
#65ABC9
oklch(70.6% 0.083 227.5)
-
Step 500
500
#3196BB
oklch(63.2% 0.106 226.9)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8B
oklch(49.2% 0.095 227.3)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900 (this color)
#104D63
oklch(39.4% 0.069 227.5)
-
Step 950
950
#0A2B37
oklch(27.2% 0.043 226.1)
#104D63 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) | #414C64 | 0.050 |
| Deuteranopia (no green cones) | #364463 | 0.043 |
| Tritanopia (no blue cones) | #005354 | 0.038 |
| Achromatopsia (no color) | #474747 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104D63
#104D63
oklch(39.4% 0.069 227.5)
- #643A24
#643A24
oklch(39.5% 0.069 47.6)
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 #104D63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.032
- Deep Teal #00555A ΔE 0.035
- Dark Teal #014D4E ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.052
- Dark Blue Green #005249 ΔE 0.054
- Twilight Blue #0A437A ΔE 0.056
Use #104D63 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.