#083FA3
Closest named color: Sapphire (#2138AB). oklch(40.6% 0.17 261.6), rgb(8, 63, 163).
Aa
White text reads best on this color (9.33:1).
About this color
#083FA3 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.170 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.024 away. White text reads best on it, at 9.33:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.25:1 |
| White text | 9.33:1 |
Values
| HEX | #083FA3 |
| RGB | rgb(8, 63, 163) |
| HSL | hsl(219, 91%, 34%) |
| OKLCH | oklch(40.6% 0.17 261.6) |
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 #083FA3 | 9.33:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #083FA3 | 2.25:1 | Fails | Lc 13.3 | Not readable |
| #083FA3 text on white | 9.33:1 | AAA | Lc 90.7 | Preferred for body text |
| #083FA3 text on black | 2.25:1 | Fails | Lc -11.6 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFE
oklch(93.5% 0.03 262.5)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#6A9EFF
oklch(70.6% 0.153 261.9)
-
Step 500
500
#4082FF
oklch(63.1% 0.198 261.6)
-
Step 600
600
#1C66F2
oklch(55.6% 0.222 261.7)
-
Step 700
700
#0E54D2
oklch(49.1% 0.205 261.5)
-
Step 800
800 (this color)
#083FA3
oklch(40.6% 0.17 261.6)
-
Step 900
900
#153C87
oklch(37.7% 0.133 261.8)
-
Step 950
950
#0D244F
oklch(27% 0.084 261.5)
#083FA3 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) | #004EA6 | 0.038 |
| Deuteranopia (no green cones) | #0040A1 | 0.005 |
| Tritanopia (no blue cones) | #00596B | 0.129 |
| Achromatopsia (no color) | #474747 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #083FA3
#083FA3
oklch(40.6% 0.17 261.6)
- #604400
#604400
oklch(40.7% 0.084 81.8)
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 #083FA3, closest first.
No curated palette has a color within ΔE 0.04 of #083FA3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.024
- Cobalt #1E488F ΔE 0.044
- Blue Blue #2242C7 ΔE 0.062
- Blueberry #464196 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.070
- Dusk Blue #26538D ΔE 0.073
- Light Navy #155084 ΔE 0.073
- Indigo Blue #3A18B1 ΔE 0.077
Use #083FA3 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.