#104F63
Closest named color: Deep Teal (#00555A). oklch(39.9% 0.069 224.5), rgb(16, 79, 99).
Aa
White text reads best on this color (9.04:1).
About this color
#104F63 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.029 away. White text reads best on it, at 9.04:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #104F63 |
| RGB | rgb(16, 79, 99) |
| HSL | hsl(194, 72%, 23%) |
| OKLCH | oklch(39.9% 0.069 224.5) |
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 #104F63 | 9.04:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #104F63 | 2.32:1 | Fails | Lc 13.5 | Not readable |
| #104F63 text on white | 9.04:1 | AAA | Lc 90.5 | Preferred for body text |
| #104F63 text on black | 2.32:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9DC8DA
oklch(80.8% 0.052 225.4)
-
Step 400
400
#64ACC7
oklch(70.7% 0.082 224.3)
-
Step 500
500
#2D96B9
oklch(63% 0.106 225)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900 (this color)
#104F63
oklch(39.9% 0.069 224.5)
-
Step 950
950
#092B36
oklch(27.1% 0.043 223.5)
#104F63 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) | #444D64 | 0.053 |
| Deuteranopia (no green cones) | #394563 | 0.047 |
| Tritanopia (no blue cones) | #005556 | 0.035 |
| Achromatopsia (no color) | #494949 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104F63
#104F63
oklch(39.9% 0.069 224.5)
- #663B27
#663B27
oklch(40% 0.069 45.2)
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 #104F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.035
- Dark Teal #014D4E ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.040
- Petrol #005F6A ΔE 0.050
- Dark Blue Green #005249 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.051
Use #104F63 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.