#104F72
Closest named color: Deep Sea Blue (#015482). oklch(40.8% 0.084 239.2), rgb(16, 79, 114).
Aa
White text reads best on this color (8.81:1).
About this color
#104F72 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.084 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.028 away. White text reads best on it, at 8.81:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.38:1 |
| White text | 8.81:1 |
Values
| HEX | #104F72 |
| RGB | rgb(16, 79, 114) |
| HSL | hsl(201, 75%, 25%) |
| OKLCH | oklch(40.8% 0.084 239.2) |
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 #104F72 | 8.81:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #104F72 | 2.38:1 | Fails | Lc 14.2 | Not readable |
| #104F72 text on white | 8.81:1 | AAA | Lc 89.8 | Fine for body text |
| #104F72 text on black | 2.38:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A4C6DD
oklch(80.9% 0.049 237.8)
-
Step 400
400
#72A8CD
oklch(70.8% 0.079 239.3)
-
Step 500
500
#4991C0
oklch(63% 0.101 239.7)
-
Step 600
600
#277BAC
oklch(55.6% 0.109 239.2)
-
Step 700
700
#176794
oklch(49% 0.102 239.6)
-
Step 800
800 (this color)
#104F72
oklch(40.8% 0.084 239.2)
-
Step 900
900
#1B4660
oklch(37.7% 0.065 238.5)
-
Step 950
950
#112938
oklch(26.9% 0.041 238.3)
#104F72 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) | #3E4F74 | 0.044 |
| Deuteranopia (no green cones) | #314671 | 0.036 |
| Tritanopia (no blue cones) | #00585B | 0.056 |
| Achromatopsia (no color) | #4A4A4A | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104F72
#104F72
oklch(40.8% 0.084 239.2)
- #6A3D13
#6A3D13
oklch(40.7% 0.083 59.3)
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 #104F72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.028
- Light Navy #155084 ΔE 0.031
- Twilight Blue #0A437A ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.043
- Dusk Blue #26538D ΔE 0.050
- Deep Teal #00555A ΔE 0.051
- Charcoal #264653 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.054
Use #104F72 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.