#3958BC
Closest named color: Mid Blue (#276AB3). oklch(49.4% 0.162 267.2), rgb(57, 88, 188).
Aa
White text reads best on this color (6.37:1).
About this color
#3958BC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.162 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.052 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #3958BC |
| RGB | rgb(57, 88, 188) |
| HSL | hsl(226, 53%, 48%) |
| OKLCH | oklch(49.4% 0.162 267.2) |
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 #3958BC | 6.37:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #3958BC | 3.29:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #3958BC text on white | 6.37:1 | AA | Lc 81.3 | Fine for body text |
| #3958BC text on black | 3.29:1 | AA large text | Lc -20.6 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AAC0F4
oklch(80.9% 0.078 266.8)
-
Step 400
400
#7E9DEF
oklch(70.7% 0.126 267.4)
-
Step 500
500
#5E82E9
oklch(63% 0.16 267.2)
-
Step 600
600
#4669D8
oklch(55.6% 0.175 267.3)
-
Step 700
700 (this color)
#3958BC
oklch(49.4% 0.162 267.2)
-
Step 800
800
#2E4897
oklch(42.7% 0.133 266.9)
-
Step 900
900
#293D78
oklch(37.7% 0.104 267.2)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#3958BC 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) | #1265C0 | 0.038 |
| Deuteranopia (no green cones) | #0059BA | 0.034 |
| Tritanopia (no blue cones) | #007081 | 0.132 |
| Achromatopsia (no color) | #5F5F5F | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3958BC
#3958BC
oklch(49.4% 0.162 267.2)
- #7A5D00
#7A5D00
oklch(49.4% 0.101 87.4)
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 #3958BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.053
- Iris #6258C4 ΔE 0.056
- French Blue #436BAD ΔE 0.062
- Blue Blue #2242C7 ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.069
- Royal Blue #4169E1 ΔE 0.071
Use #3958BC 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.