#415DCB
Closest named color: Warm Blue (#4B57DB). oklch(52% 0.173 268.8), rgb(65, 93, 203).
Aa
White text reads best on this color (5.74:1).
About this color
#415DCB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.173 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.031 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #415DCB |
| RGB | rgb(65, 93, 203) |
| HSL | hsl(228, 57%, 53%) |
| OKLCH | oklch(52% 0.173 268.8) |
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 #415DCB | 5.74:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #415DCB | 3.65:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #415DCB text on white | 5.74:1 | AA | Lc 78.4 | Fine for body text |
| #415DCB text on black | 3.65:1 | AA large text | Lc -23.4 | 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
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9F9
oklch(88.6% 0.046 267.9)
-
Step 300
300
#AABFF8
oklch(80.9% 0.084 268.8)
-
Step 400
400
#7E9CF4
oklch(70.8% 0.134 268.6)
-
Step 500
500
#5F80F0
oklch(63.1% 0.172 268.8)
-
Step 600
600
#4866DF
oklch(55.6% 0.187 269)
-
Step 700
700 (this color)
#415DCB
oklch(52% 0.173 268.8)
-
Step 800
800
#30469C
oklch(42.8% 0.142 268.8)
-
Step 900
900
#2A3B7C
oklch(37.6% 0.112 269.4)
-
Step 950
950
#182349
oklch(26.9% 0.072 269)
#415DCB 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) | #036CCF | 0.046 |
| Deuteranopia (no green cones) | #0060C9 | 0.039 |
| Tritanopia (no blue cones) | #00778B | 0.141 |
| Achromatopsia (no color) | #666666 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #415DCB
#415DCB
oklch(52% 0.173 268.8)
- #826500
#826500
oklch(52.1% 0.106 88.9)
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 #415DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.031
- Royal Blue #4169E1 ΔE 0.043
- Iris #6258C4 ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.051
- Neon Blue #4361EE ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.055
- Azul #1D5DEC ΔE 0.057
- Mid Blue #276AB3 ΔE 0.057
Use #415DCB 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.