#3158BE
Closest named color: Mid Blue (#276AB3). oklch(49.2% 0.167 265), rgb(49, 88, 190).
Aa
White text reads best on this color (6.42:1).
About this color
#3158BE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.167 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.053 away. White text reads best on it, at 6.42:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.27:1 |
| White text | 6.42:1 |
Values
| HEX | #3158BE |
| RGB | rgb(49, 88, 190) |
| HSL | hsl(223, 59%, 47%) |
| OKLCH | oklch(49.2% 0.167 265) |
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 #3158BE | 6.42:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #3158BE | 3.27:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #3158BE text on white | 6.42:1 | AA | Lc 81.4 | Fine for body text |
| #3158BE text on black | 3.27:1 | AA large text | Lc -20.4 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A7C0F6
oklch(80.8% 0.082 265.3)
-
Step 400
400
#799EF1
oklch(70.7% 0.129 265)
-
Step 500
500
#5883EC
oklch(63.1% 0.165 265.2)
-
Step 600
600
#3E6ADB
oklch(55.6% 0.18 265)
-
Step 700
700 (this color)
#3158BE
oklch(49.2% 0.167 265)
-
Step 800
800
#294899
oklch(42.6% 0.138 265.2)
-
Step 900
900
#253D7A
oklch(37.6% 0.108 265.4)
-
Step 950
950
#162447
oklch(26.9% 0.068 265.6)
#3158BE 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) | #0665C2 | 0.036 |
| Deuteranopia (no green cones) | #0058BC | 0.027 |
| Tritanopia (no blue cones) | #007182 | 0.133 |
| Achromatopsia (no color) | #5F5F5F | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3158BE
#3158BE
oklch(49.2% 0.167 265)
- #7B5B00
#7B5B00
oklch(49.1% 0.101 84.7)
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 #3158BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.053
- Warm Blue #4B57DB ΔE 0.055
- Blue Blue #2242C7 ΔE 0.058
- Iris #6258C4 ΔE 0.063
- French Blue #436BAD ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Royal Blue #4169E1 ΔE 0.071
- Azul #1D5DEC ΔE 0.072
Use #3158BE 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.