#3D59D7
Closest named color: Warm Blue (#4B57DB). oklch(51.9% 0.195 268.9), rgb(61, 89, 215).
Aa
White text reads best on this color (5.81:1).
About this color
#3D59D7 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.195 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.017 away. White text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.60:1 |
| White text | 5.81:1 |
Values
| HEX | #3D59D7 |
| RGB | rgb(61, 89, 215) |
| HSL | hsl(229, 66%, 54%) |
| OKLCH | oklch(51.9% 0.195 268.9) |
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 #3D59D7 | 5.81:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #3D59D7 | 3.60:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #3D59D7 text on white | 5.81:1 | AA | Lc 78.6 | Fine for body text |
| #3D59D7 text on black | 3.60:1 | AA large text | Lc -23.2 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD8FD
oklch(88.4% 0.053 270)
-
Step 300
300
#A7BEFF
oklch(80.8% 0.096 269.2)
-
Step 400
400
#7A9AFE
oklch(70.6% 0.151 268.9)
-
Step 500
500
#5B7DFD
oklch(63.1% 0.194 269)
-
Step 600
600
#4362EC
oklch(55.6% 0.21 268.8)
-
Step 700
700 (this color)
#3D59D7
oklch(51.9% 0.195 268.9)
-
Step 800
800
#2C42A6
oklch(42.6% 0.163 268.9)
-
Step 900
900
#273A83
oklch(37.8% 0.125 268.7)
-
Step 950
950
#17224D
oklch(26.9% 0.081 269.5)
#3D59D7 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) | #006CDB | 0.050 |
| Deuteranopia (no green cones) | #005ED5 | 0.035 |
| Tritanopia (no blue cones) | #00798F | 0.158 |
| Achromatopsia (no color) | #656565 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D59D7
#3D59D7
oklch(51.9% 0.195 268.9)
- #816500
#816500
oklch(52% 0.106 89.6)
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 #3D59D7, closest first.
No curated palette has a color within ΔE 0.04 of #3D59D7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.017
- Azul #1D5DEC ΔE 0.039
- Neon Blue #4361EE ΔE 0.041
- Royal Blue #4169E1 ΔE 0.042
- Iris #6258C4 ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.063
Use #3D59D7 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.