#046FBB
Closest named color: Mid Blue (#276AB3). oklch(53.1% 0.145 249), rgb(4, 111, 187).
Aa
White text reads best on this color (5.25:1).
About this color
#046FBB is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.145 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.019 away. White text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #046FBB |
| RGB | rgb(4, 111, 187) |
| HSL | hsl(205, 96%, 37%) |
| OKLCH | oklch(53.1% 0.145 249) |
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 #046FBB | 5.25:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #046FBB | 3.99:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #046FBB text on white | 5.25:1 | AA | Lc 75.4 | Fine for body text |
| #046FBB text on black | 3.99:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#A0C5EA
oklch(80.9% 0.066 248.6)
-
Step 400
400
#6BA6DF
oklch(70.8% 0.104 248.7)
-
Step 500
500
#3F8ED6
oklch(63.1% 0.133 249)
-
Step 600
600 (this color)
#046FBB
oklch(53.1% 0.145 249)
-
Step 700
700
#0163A9
oklch(49% 0.136 249.2)
-
Step 800
800
#0B5189
oklch(42.6% 0.112 249.4)
-
Step 900
900
#15446D
oklch(37.7% 0.086 248.8)
-
Step 950
950
#0E2840
oklch(27% 0.055 249)
#046FBB 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) | #4874BE | 0.046 |
| Deuteranopia (no green cones) | #2B65BA | 0.029 |
| Tritanopia (no blue cones) | #00818C | 0.102 |
| Achromatopsia (no color) | #6C6C6C | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #046FBB
#046FBB
oklch(53.1% 0.145 249)
- #965D00
#965D00
oklch(52.9% 0.116 68.9)
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 #046FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.019
- Windows Blue #3778BF ΔE 0.039
- French Blue #436BAD ΔE 0.040
- Nice Blue #107AB0 ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.044
- Ocean Blue #03719C ΔE 0.051
- Muted Blue #3B719F ΔE 0.052
- Peacock Blue #016795 ΔE 0.062
Use #046FBB 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.