#104F8E
Closest named color: Light Navy (#155084). oklch(42.6% 0.12 253.1), rgb(16, 79, 142).
Aa
White text reads best on this color (8.29:1).
About this color
#104F8E is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.120 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.018 away. White text reads best on it, at 8.29:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.53:1 |
| White text | 8.29:1 |
Values
| HEX | #104F8E |
| RGB | rgb(16, 79, 142) |
| HSL | hsl(210, 80%, 31%) |
| OKLCH | oklch(42.6% 0.12 253.1) |
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 #104F8E | 8.29:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #104F8E | 2.53:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #104F8E text on white | 8.29:1 | AAA | Lc 88.2 | Fine for body text |
| #104F8E text on black | 2.53:1 | Fails | Lc -14.0 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A1C4EE
oklch(80.9% 0.071 253.2)
-
Step 400
400
#6CA4E5
oklch(70.7% 0.113 253)
-
Step 500
500
#428CDE
oklch(63.2% 0.144 253)
-
Step 600
600
#1D74CB
oklch(55.6% 0.156 253)
-
Step 700
700
#0D61B0
oklch(49.2% 0.145 253.1)
-
Step 800
800 (this color)
#104F8E
oklch(42.6% 0.12 253.1)
-
Step 900
900
#174272
oklch(37.6% 0.095 253.7)
-
Step 950
950
#0F2743
oklch(27% 0.06 253.9)
#104F8E 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) | #2E5490 | 0.029 |
| Deuteranopia (no green cones) | #15498D | 0.017 |
| Tritanopia (no blue cones) | #005E67 | 0.089 |
| Achromatopsia (no color) | #4E4E4E | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104F8E
#104F8E
oklch(42.6% 0.12 253.1)
- #6C4500
#6C4500
oklch(42.5% 0.091 72.8)
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 #104F8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.018
- Cobalt #1E488F ΔE 0.020
- Dusk Blue #26538D ΔE 0.021
- Deep Sea Blue #015482 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.045
- Twilight Blue #0A437A ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.055
- Blueberry #464196 ΔE 0.065
Use #104F8E 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.